K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

I-Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

1. A. chore                              B. work                       C. more                                   D. divorce

2. A. trashed                           B. talked                     C. reached                               D. loved

3. A. prepare                           B. help                         C. tennis                                  D. tell

4. A. husband                          B. mum                       C. contribute                           D. vulnerable

5. A. cleaned                           B. shared                     C. called                                  D. visited

6. A. skill                                 B. split                         C. children                              D. finance

7. A. breadwinner                   B. clean                       C. each                                                D. lead

8. A. balance                           B. challenge                C. career                                  D. happy

9. A. share                               B. alike                        C. tradition                              D. equal

10. A. generation                    B. grateful                   C. educate                               D. grandparents

II. Choose the option that best completes each sentence.

1. The police couldn’t find any evidence and had to......  

A. allow him go                      B. let him go                           C. let him to go                     D. leave him go

2. As we were all tired and hungry, he offered us something..... .  A. for eating    B. eating   C. eat  D. to eat

3. Joe finally admitted.......for not doing his homework.

A. to be punished                     B. being punished              C. be punished                         D. that he punished

4. Yesterday Tom was made.......after school.  A. stay        B. staying         C. to stay      D. stays

5. When they.......at the meeting, everyone.......home.

A. arrived / went                     

B. had arrived / went          

C. arrived / had gone            

D. arrive / has gone

6. It's very kind of you.......these homeless children.

A. to look after                        

B. look after                      

C. for looking after                 

D. looking after

7. Mike often repairs the car himself, but today he had the garage......

A. do it                                    

B. does it                            

C. repairs it 

D. to repair it

8. The project is supposed........by the end of the month. 

A. to complete         B. to be completed    C. completing       D. being completed

9. Tim.......TV when his parents came home.

A. watched   B. had watched  C. had been watching      D. was watching

10. The little children agreed.....us with the housework. 

A. to be helped     B. to help   C. being helped   D. helping

11. Hoang ____ his email four times a week in order not to miss anything important.

 A. checks                    B. will check               C. is checking              D. check

12. Nowadays, people ____ social networks with more and more caution.

A. uses                                   

B. are using                

C. used                       

D. use

13. At the moment, my sister ____ her homework, my brother ____ games.

A. is making - is playing        

B. is doing - is playing           

C. does - plays                       

D. makes - is playing

14. It’s 7.00 p.m. now and we ____ meal together. We usually ____ dinner at that time.

A. have - eat               

B. have - are eating                

C. are having - eat      

D. are having - are eating

15. I ____ a bike to school every day but today I ____ to school by bus because it was stolen yesterday.

A. rode - went            

B. ride - am going                  

C. ride - go                 

D. is riding - am going 

1
15 tháng 7 2021

I-Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

1. A. chore                              B. work                       C. more                                   D. divorce

2. A. trashed                           B. talked                     C. reached                               D. loved

3. A. prepare                           B. help                         C. tennis                                  D. tell

4. A. husband                          B. mum                       C. contribute                           D. vulnerable

5. A. cleaned                           B. shared                     C. called                                  D. visited

6. A. skill                                 B. split                         C. children                              D. finance

7. A. breadwinner                   B. clean                       C. each                                                D. lead

8. A. balance                           B. challenge                C. career                                  D. happy

9. A. share                               B. alike                        C. tradition                              D. equal

10. A. generation                    B. grateful                   C. educate                               D. grandparents

II. Choose the option that best completes each sentence.

1. The police couldn’t find any evidence and had to......  

A. allow him go                      B. let him go                           C. let him to go                     D. leave him go

2. As we were all tired and hungry, he offered us something..... .  A. for eating    B. eating   C. eat  D. to eat

3. Joe finally admitted.......for not doing his homework.

A. to be punished                     B. being punished              C. be punished                         D. that he punished

4. Yesterday Tom was made.......after school.  A. stay        B. staying         C. to stay      D. stays

5. When they.......at the meeting, everyone.......home.

A. arrived / went                     

B. had arrived / went          

C. arrived / had gone            

D. arrive / has gone

6. It's very kind of you.......these homeless children.

A. to look after                        

B. look after                      

C. for looking after                 

D. looking after

7. Mike often repairs the car himself, but today he had the garage......

A. do it                                    

B. does it                            

C. repairs it 

D. to repair it

8. The project is supposed........by the end of the month. 

A. to complete         B. to be completed    C. completing       D. being completed

9. Tim.......TV when his parents came home.

A. watched   B. had watched  C. had been watching      D. was watching

10. The little children agreed.....us with the housework. 

A. to be helped     B. to help   C. being helped   D. helping

11. Hoang ____ his email four times a week in order not to miss anything important.

 A. checks                    B. will check               C. is checking              D. check

12. Nowadays, people ____ social networks with more and more caution.

A. uses                                   

B. are using                

C. used                       

D. use

13. At the moment, my sister ____ her homework, my brother ____ games.

A. is making - is playing        

B. is doing - is playing           

C. does - plays                       

D. makes - is playing

14. It’s 7.00 p.m. now and we ____ meal together. We usually ____ dinner at that time.

A. have - eat               

B. have - are eating                

C. are having - eat      

D. are having - are eating

15. I ____ a bike to school every day but today I ____ to school by bus because it was stolen yesterday.

A. rode - went            

B. ride - am going                  

C. ride - go                 

D. is riding - am going 

15 tháng 8 2019

1. A. chore B. work C. more D. divorce
2. A. trashed B. talked C. reached D. loved
3. A. prepare B. help C. tennis D. tell
4. A. husband B. mum C. contribute D. vulnerable
5. A. cleaned B. shared C. called D. visited
6. A. skill B. split C. children D. finance
7. A. breadwinner B. clean C. each D. lead
8. A. balance B. challenge C. career D. happy
9. A. share B. alike C. tradition D. equal
10. A. generation B. grateful C. educate D. grandparents

I. Phonetics Choose the word whose underlined part is pronounced differently from that of the others. 1. A. chore B. work C. more D. divorce 2. A. trashed B. talked C. reached D. loved 3. A. prepare B. help C. tennis D. tell 4. A. husband B. mum C. contribute D. vulnerable 5. A. skill B. split C. children D. finance 6. A. breadwinner B. clean C. each D. lead 7. A. balance B. challenge C. career D. happy 8. A. share B. alike C. tradition D. equal 9. A. allergy B. digest C. oxygen D. sugar 10. A....
Đọc tiếp

I. Phonetics Choose the word whose underlined part is pronounced differently from that of the others. 1. A. chore B. work C. more D. divorce 2. A. trashed B. talked C. reached D. loved 3. A. prepare B. help C. tennis D. tell 4. A. husband B. mum C. contribute D. vulnerable 5. A. skill B. split C. children D. finance 6. A. breadwinner B. clean C. each D. lead 7. A. balance B. challenge C. career D. happy 8. A. share B. alike C. tradition D. equal 9. A. allergy B. digest C. oxygen D. sugar 10. A. breath B. head C. health D. heart 11. A. among B. belong C. body D. strong 12. A. approach B. children C. chocolate D. stomach 13. A. intestine B. mind C. spine D. reliable 14. A. modest B. contest C. suggest D. intestine 15. A. fortunate B. considerate C. nominate D. passionate 16. A. movement B. president C. extent D. instrument 17. A. statement B. movement C. evident D. comment 18. A. performed B. released C. received D. adored 19. A. artists B. singers C. listeners D. drums 20. A. poets B. flutes C. organs D. instruments

1
16 tháng 10 2021

1. A. chore B. work C. more D. divorce

2. A. trashed B. talked C. reached D. loved

3. A. prepare B. help C. tennis D. tell

4. A. husband B. mum C. contribute D. vulnerable

5. A. skill B. split C. children D. finance

6. A. breadwinner B. clean C. each D. lead

7. A. balance B. challenge C. career D. happy

8. A. share B. alike C. tradition D. equal

9. A. allergy B. digest C. oxygen D. sugar

10. A. breath B. head C. health D. heart

11. A. among B. belong C. body D. strong

12. A. approach B. children C. chocolate D. stomach

13. A. intestine B. mind C. spine D. reliable

14. A. modest B. contest C. suggest D. intestine

15. A. fortunate B. considerate C. nominate D. passionate

16. A. movement B. president C. extent D. instrument

17. A. statement B. movement C. evident D. comment

18. A. performed B. released C. received D. adored

19. A. artists B. singers C. listeners D. drums

20. A. poets B. flutes C. organs D. instruments

  I. Circle the letter A, B, C, or D to indicate the word whose underlined part differs from the other  three in pronunciation in each of the following questions.  1. A. psychologist B. duty C. laundry D. grocery  2. A. chore B. chance C. child D. stomach  3. A. attempts B. shares C. looks D. beliefs  4. A. laundry B. pause C. cause D. because  Circle the letter A, B, C, or D to indicate the word differs from the other three in the position of the primary stress in each of the following...
Đọc tiếp

 

 I. Circle the letter A, B, C, or D to indicate the word whose underlined part differs from the other  three in pronunciation in each of the following questions.  

1. A. psychologist B. duty C. laundry D. grocery  

2. A. chore B. chance C. child D. stomach  

3. A. attempts B. shares C. looks D. beliefs  

4. A. laundry B. pause C. cause D. because  

Circle the letter A, B, C, or D to indicate the word differs from the other three in the position of the primary stress in each of the following questions.  

5. A. grocery B. sociable C. breadwinner D. decision  

6. A. duty B. retire C. trouble D. household  

7. A. family B. whenever C. obedient D. solution  

8. A. homemaker B. critical C. tradition D. typical  

Circle the letter A, B, C, or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in  each of the following questions.  

  9.Jarrett was nurtured by his parents in a close-knit family  

 A. cared for B. trained C. loved D. talked down  

10. She was a homemaker for 13 years, until all the last child was in school full-time, then plunged into  law.  

 A. builder B. designer C. housewife D. construction worker  

11. The government should force husbands to pay their wives for chore.  

 A. house-keeping B. housework C. children-raising D. cooking 

12. She got up late and rushed to the bus stop.  

 A. came into B. went leisurely C. went quickly D. dropped by  

Circle the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in  each of the following questions.  

13. I’ll give you the benefit of the doubt as to whether it was deliberate or not.  

 A. profit B. advantage C. disadvantage D. gain  

14. Nuclear family set allows couples to spend more time with each other as there are no family rituals as such.  

 A. extended B. basic C. additional D. extra  

15. Jarrett was nurtured by his parents in a close-knit family.  

 A. fed B. cared C. brought up D. abandoned  

16. Sharing household chores creates a positive atmosphere for the family.  

 A. outright B. negative C. convinced D. irrefutable  

Circle the letter A, B, C or D to indicate the underlined part that needs correcting in order for each of the following sentences to be correct. 

17. The (A) wives are (B) also responsible to (C) the family finances (D).  

18. Frank usually swims (A) before work (B), but (C) this morning he jogs.(D)  

19. Children who (A) shares (B) the housework with (C) their mums and dads do (D) better at school.

      20. It is the duty for (A) the young to take (B) care of (C) their elderly (D) parents.

  Circle the letter A, B, C, or D to indicate the correct answer in each of the following questions.           21. Gender equality means that both men and women are _____ equally.  

A. treated B. played C. worked D. provided  

22. Nowadays, many people have still fought for gender _____ in many fields, especially in education  and employment.  

A. elimination B. equality C. opportunity D. discrimination 

23. Most people consider it women's _____ to take care of children and do housework.  A. responsibility B. relationship C. limit D. respect  

24. It's hard work looking _____ three children all day. 

A. after B. up C. to D. through 

25. When my mother is busy preparing dinner, my father often gives a hand _____ tidying the living room.  

A. on B. with C. for D. about  

26. You are old enough to take _____ for what you have done. 

A. responsible B. responsibility C. responsibly D. irresponsible  

27. These quick and easy_____ can be effective in the short term, but they have a cost.  A. solve B. solvable C. solutions D. solvability  

28. Billy comes and gives me a hand with cooking. 

A. helps B. prepares C. is busy D. attempts  

29. Where is Jimmy? - He is _____ work. He is busy_____ his monthly report.  A. on / for B. in / about C. to / through D. at / with  

30. We are not allowed _____jeans at school.  

A. wear B. to wear C. wearing D. worn  

31. Sometimes I do not feel like _____ to my sibling about my troubles,  

A. talk B. to talk C. talking D. talked  

32. Right now, Jim _____ the newspaper and Kathy_____ dinner.  

A. reads / has cooked B. is reading / is cooking  

C. has read / was cooking D. read / will be cooking  

33. My husband and I both go out to work so we share the _____  

A. happiness B. household chores C. responsibility D. employment  

34. He was very respectful at home and _____ to his parents.  

A. responsible B. caring C. obedient D. lovely  

35. Every day I _____up at 6 o'clock, _____ breakfast at 7 o'clock and _____for work at 8 o'clock  

A. get / eat / leave B. have got / eating / leaving  C. got / ate / left D. will get / have eaten / left  

36. We enjoy _____ time together in the evening when the family members gather in the living room  after a day of working hard.  

A. spending B. caring C. taking D. doing  

37. It is parents' duty and responsibility to_____ hands to take care of their children and give them a happy home.  

A. shake B. hold C. join D. take 

38. He is a _____ boy. He is often kind and helpful to every classmate.  

A. frank B. lovely C. obedient D. caring  

39. Doctors are supposed to _____ responsibility for human life.  

A. do B. take C. rush D. join 

40. Peter was _____ a hurry to go so he did not stop to greet me.  

A. in B. on C. with D. over  

41. _____the eldest child, he works hard to help his parents support the family.  A. Be B. Is C. To be D. Being  

42. She _____trying to pass her driving test but fails every time.  

A. kept B. is keeping C. had kept D. keeps  

43. I _____ complete silence now while I am trying this experiment.  

A. am wanting B. want C. did want D. have wanted  

44. The students ___________ by Mrs. Monty. However, this week they _____ by Mr. Tanzer.  
A. are usually taught / are being taught

B. usually teach / are teaching  

C. have usually been taught / have been teaching

D. were usually teaching / are teaching  

45. My mother always the first _____ up and the last _____ to bed.  

A. getting / going B. to get / going C. getting / to go D. to get / to go  

46. Alex is busy_____ for his exams.  

A. to study B. studied C. studying D. studies  

47. One of Vietnamese traditions is a belief in _____ families and in preserving their cultures.  A. wealthy B. secure C. safe D. close-knit  

48. You should not burn _____. You had better dig a hole and bury it.  

A. dishes B. lab C. garbage D. shift  

49. With greatly increased workloads, everyone is _______ pressure now.  

A. under B. above C. upon D. out of  

50. What are the _______ of that country? - I think it is some kinds of cheese and sauces.  
A. drinks B. beverages C. grains D. special dishes 

0
16 tháng 12 2021

Choose the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Question 1. A. travelled B. played C. cleaned D. wanted

Question 2. A. season B. release C. receive D. healthy

27 tháng 12 2021

1B

2A

3B

13 tháng 2 2020

1 , A prevent B education C dependent D eliminate

2 , A encourage B contribute C delicious D college

3 tháng 3 2023

sai rồi mẹ ơi câu 1 là a còn câu 2 là c =))

 

Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.1. A. banned                      B. cleared                            C. kissed                              D. raised2. A. recognised                B. stringed                          C. conquered                     D. watched3. A. liked                            B. backed                            C. encouraged                   D....
Đọc tiếp

Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

1. A. banned                      B. cleared                            C. kissed                              D. raised

2. A. recognised                B. stringed                          C. conquered                     D. watched

3. A. liked                            B. backed                            C. encouraged                   D. reversed

4. A. enjoyed                     B. finished                           C. suffered                         D. agreed

5. A. performed                 B. released                         C. received                         D. adored

6. A. artists                          B. singers                             C. listeners                          D. drums

7. A. poets                          B. flutes                               C. organs                             D. instruments

8. A. melodies                   B. festivals                          C. guitars                             D. contests

9. A. clips                             B. recordings                      C. views                               D. manners

10. A. writers                     B. laughs                              C. loves                D. awards

 

1
27 tháng 9 2021

Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

1. A. banned                      B. cleared                            C. kissed                              D. raised

2. A. recognised                B. stringed                          C. conquered                     D. watched

3. A. liked                            B. backed                            C. encouraged                   D. reversed

4. A. enjoyed                     B. finished                           C. suffered                         D. agreed

5. A. performed                 B. released                         C. received                         D. adored

6. A. artists                          B. singers                             C. listeners                          D. drums

7. A. poets                          B. flutes                               C. organs                             D. instruments

8. A. melodies                   B. festivals                          C. guitars                             D. contests

9. A. clips                             B. recordings                      C. views                               D. manners

10. A. writers                     B. laughs                              C. loves                D. awards

Exercise 1. Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.1. A. sick                     B. second                    C. service                    D. sure2. A. angry                  B. needy                      C. supply                     D. country3. A. handicapped       B. interested                C. dedicated               D. excited4. A. hungry                B....
Đọc tiếp

Exercise 1. Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

1. A. sick                     B. second                    C. service                    D. sure

2. A. angry                  B. needy                      C. supply                     D. country

3. A. handicapped       B. interested                C. dedicated               D. excited

4. A. hungry                B. community             C. mutual                    D. student

5. A. charity                B. school                     C. childless                  D. teacher

Exercise 2. Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.

6. A. dedicate             B. fortunate                 C. practical                  D. volunteer

7. A. ensuring              B. protecting               C. providing                D. widening

8. A. donate                B. apply                       C. provide                   D. study

9. A. successful           B. announcement        C. ignorant                  D. experience

10. A. disadvantaged  B. environment           C. advertisement         D. unfortunate

Part II. VOCABULARY

Exercise 3. Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

11. Luckily, I got some ____ advice on how to make a presentation on ‘For a better community’ from my class teacher.

            A. useless                    B. useful                      C. usefulness               D. uselessness

12. These ____ children encounter many problems and really need our help.

            A. disadvantaged        B. advantaged             C. disadvantage          D. advantage

13. Fundraising for charity is a ____ thing for everyone to do to help the community.

            A. meant                     B. meaningful             C. meaningless            D. meaning

14. They were so ____ about joining the local volunteer group that they couldn’t sleep last night.

            A. excite                      B. excitement              C. exciting                   D. excited

15. It is ____ that all the students in class 1OA choose to do a project on ‘Helping the needy’.

A. surprising                B. surprised                 C. surprise                   D. surprisingly

16.  Volunteers become well ____ of the problems facing the world.

A. aware                      B. concerned               C. helpful                    D. interested

17. English teaching is considered a good example of a volunteer job which often turns ____ a career.

A. off                          B. up                           C. on                           D. into

18. Mahatma Gandhi fought for the rights of coloured people in general and the Indians ____.

A. in time                    B. in particular            C. in contrast               D. in fact

19. A/an ____ is a person who needs others to take care of him/her, because of illness that he/she had for a long time.

A. patient                    B. martyr                     C. invalid                    D. addict

20. Mr. Chen is more _____ because he has finally agreed to allow his daughter to join an overseas volunteer organisation in Africa.

A. single-minded                    B. narrow-minded

C. absent-minded                    D. open-minded

21. Most of the students in that special school are making good progress, but Michael is a ____ case.

A. hopefully                B. hopeless                  C. hopeful                   D. hopelessly

22. A lot of generous businessmen have ____ valuable contributions to helping needy people.

A. done                       B. taken                       C. made                       D. given

23. Poor students cannot ____ an abundance of presents on their birthday.

A. look forward to                  B. put up with

C. come up w ith                     D. cut down on

24. Befriending can offer volunteers the opportunity to provide support and friendship to a person who may be going ____ a difficult period.

A. up                           B. on                           C . off                         D. through

25. Volunteer organisations are generally small-staffed, so they need to ____ lots of volunteers for a huge event.

A. employ                   B. recruit                     C. research                  D. catch

26. You’d better ____ a commitment to being a volunteer on a regular basis.

A. promise                   B. do                           C. make                       D. pull

27. They visit a retirement home and ____ time doing fun activities with the elderly who lack immediate family.

A. spend                      B. lose                         C. waste                      D. consume

28. Both community ____ and volunteerism are an investment in our community and the people who live in it.

A. life                          B. language                 C. performance           D. service

29. ____ being the CEO of Microsoft, Bill Gates is also one of the world’s greatest philanthropists.

A. Aside from                         B. But for                    C. Except for              D. In addition

30. Their massive salaries let them afford to give ____ huge amounts to charities.

A. off                          B. up                           C. away                       D. hack

31. When you get involved in a volunteer project, you are able to ____ your knowledge into practice.

A. take                                    B. put                          C. bring                       D. push

32. Volunteers can work with many ____ children who were harmed by Agent Orange in childcare centres.

A. parentless               B. disabled                  C. poor                        D. homeless

33. Both CARE and Oxfam organisations have programmes to help people in underdeveloped countries ____ their lives.

A. make                       B. risk                          C. improve                  D. start

34. Many international volunteer organisations are trying to find a ____ to the problem of world hunger.

A. way                                    B. method                   C. suggestion              D. solution

35. For a cleaner and greener community, everyone should ____ the amount of trash and take care of our environment.

A. increase                  B. reduce                     C. contribute               D. ignore

36. Thanks to everyone's efforts, we can do ____ to make school a meaningful place for students living in poverty.

A. a great many           B. a little                     C. a great deal             D. a few

37. On the door of the house where Louis Braille was born are the words ‘He opened the door of ____ to all those who cannot see.’

A. knowledge                         B. information             C. news                       D. material

38. University students are willing to get involved in helping the old and ____ people.

A. childlike                 B. childish                   C. children                  D. childless

39. Contact is ____ connecting students with volunteer organisations abroad.

A. in place of              B. in charge of            C. in case of                D. in danger of

40. Football superstar David Beckham has a huge ____  for kids in need.

A. head                       B. strength                  C. memory                  D. heart

Exercise 4. Mark the letter A, B, C, or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

41. I got the teaching job in the Happy Child Charity Centre just by chance.

A. accidentally            B. purposefully           C. easily                      D. immediately

42. Every month, the volunteer group go to remote and mountainous areas to help those in need.

A. empty                     B. faraway                  C. crowded                 D. poor

43. Mother Teresa devoted herself to caring for the sick and the poor.

A. spent                       B. contributed             C. gave up                   D. dedicated

44. Our top priority is to clean and protect the environment in our neighbourhood.

A. hobby                     B. job                          C. preference               D. idea

45. Young people are now getting more and more concerned about environmental problems.

A. worried                   B. nervous                   C. hopeless                  D. uneasy

Exercise 5. Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

46. Many people who do volunteer work think they are more fortunate than others.

A. lucky                      B. blessed                    C. unlucky                   D. uncomfortable

47. Public service announcement is a special advertisement for the community, normally about health or safety matters.

A. Open                      B. Private                    C. Secret                     D. Popular

48. Economically disadvantaged students often drop out of school, choosing a low- paying job to earn money.

A. leave                       B. attend                     C. accept                     D. reject

49. We are looking for camp helpers who are hard-working, energetic, and able to organise activities for young children.

A. active                      B. dynamic                  C. passive                    D. reluctant

50. Volunteering also means getting to meet people with a similar passion.

A. alike                        B. identical                  C. common                  D. distinct

1
9 tháng 12 2021

1. D

2. C

3. A

4. A

5. B

 

6. D

7. D

8. D

9. C

10. A

 

11. B

12. A

13. B

14. D

15. A

16. A

17. D

18. B

19. C

20. D

21. B

22. C

23. A

24. D

25. A

26. C

27. A

28. D

29. A

30. C

31. B

32. B

33. C

34. D

35. B

36. B

37. A

38. D

39. B

40. D

 

41. A

42. B

43. D

44. C

45. A

 

46. C

47. B

48. B

49. D

50. D