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5 tháng 9 2021

11. A. cities/s/
12. A. begged           d
13. A. approached         t
14. A. laughs           t
15. A. finished         t
16. A. expanded         id
17. A. expanded      id
18. A. promised             t
19. A. houses         s
20. A. reduced      s
21. A. cooked            t
22. A. houses          s
23. A. kites              s
24. A. attacked            t
25. A. possessed            t
26. A. derived             d
27. A. valued           d
28. A. supported          id
29. A. circled                  d
30. A. matched              t
31. A. visited                  id
32. A. talked                  t
33. A. cursed                     t
34. A. approached                t

I. Find the word which has a different sound in the underlined part1. A. activity 2. A. come 3. А. lunch 4. A. funny 5. A. school 6. A. mothers 7. A. cities 8. A. grandparents 9. A. fridge 10. A. television 11. A. best 12. A. copy 13. A. book 14. A. job 15. A. airport 16. A. biscuit 17. A. eleven 18. A. these 19. A. meet 20. A. hill 21. A. forest 22. A. bake 23. A. plant 24. A. nest 25. A. biggest B. compass B. someone B. computer B. lunch B. teaching B. centres B. watches B. brothers B. light...
Đọc tiếp

I. Find the word which has a different sound in the underlined part

1. A. activity 2. A. come 3. А. lunch 4. A. funny 5. A. school 6. A. mothers 7. A. cities 8. A. grandparents 9. A. fridge 10. A. television 11. A. best 12. A. copy 13. A. book 14. A. job 15. A. airport 16. A. biscuit 17. A. eleven 18. A. these 19. A. meet 20. A. hill 21. A. forest 22. A. bake 23. A. plant 24. A. nest 25. A. biggest B. compass B. someone B. computer B. lunch B. teaching B. centres B. watches B. brothers B. light B. toilet B. part B. happy B. beautiful B. tab B. speak B. busy B. village B. valley B. pretty B. dream B. bench B. take B. hat B. question B. island C. thank C. brother C. calculator C. sun C. chess C. aunts C. dishes C. uncles С. picture C. bed C. pie C. beast C. butterfly C. pen C. notebook C. beach C. luggage C. field C. seen C. king C. lend C. cake C. map C. coast C. August D. have D. volleyball D. uniform D. computer D. chalk D. cousins D. houses D. fathers D. living D. basket D. pen D. pull D. professional D. neighbor D. spoon D. women D. beach D. sea D. sheep D. six D. chest D. natural D. cap D. first D. cost

0

tìm a nguyên biết (a^2-1)(a^2-4)(a^2-7)(a^2-10)<0

3 tháng 1 2018

\(S=a^1+a^2+a^3+...+a^{13}=7\)

\(\Leftrightarrow\)\(\left(a^1+a^2+a^3\right)+\left(a^4+a^5+a^6+a^7+a^8+a^9+a^{10}+a^{11}+a^{12}\right)\)\(+a^{13}=7\)

\(\Leftrightarrow\)\(5+5+a^{13}=7\)

\(\Leftrightarrow\)\(a^{13}=7-5-5=-3\)

11.Who told you of the news? The _______________ may not be correct. A. informB. informationC. informationalD. informative 12.The cost of ___________ is very high in big cities. A. liveB. livingC. livedD. life 13.The businessmen of ancient Egypt hired ______ to shout about the things they wanted to sell. A. criersB. playersC. hackersD. singers 14.It took me 2 hours______________ this work. A. doB. to doC. didD. doing 15.He thinks that ______________ on the Internet is a waste of time. A. chatB....
Đọc tiếp

11.Who told you of the news? The _______________ may not be correct. 

A. inform

B. information

C. informational

D. informative 

12.The cost of ___________ is very high in big cities. 

A. live

B. living

C. lived

D. life 

13.The businessmen of ancient Egypt hired ______ to shout about the things they wanted to sell. 

A. criers

B. players

C. hackers

D. singers 

14.It took me 2 hours______________ this work. 

A. do

B. to do

C. did

D. doing 

15.He thinks that ______________ on the Internet is a waste of time. 

A. chat

B. chatting

C. chatter

D. to chat 

16.We can see many  international programs _______________different channels. 

A. in

B. at

C. on

D. of 

17.The internet is a very fast to get ___________. 

A. inform

B. information

C. informatic

D. informative 

18.I don’t know ___________ website  is useful for me. 

A. why 

B. who 

C. when

D. which 

19.Your father will go to Hanoi next week, ________? 

A. will

B. won’t

C. does

D. doesn’t 

20.When did you finish ______________ the kitchen? 

A. paint

B. painted

C. painting

D. to paint 

21.By learning English , you can get access  to the world’s __________. 

A. develop

B. developing

C. development

D. developed 

22.Can you tell me who ____________this machine? 

A. invented

B. invention

C. inventor

D. inventive 

23.The next stage in the development of television is _________TV. 

A. interact

B. interaction

C. interactive

D. interactively 

24.Remote controls are used to ____________with TV. 

A. interact

B. interaction

C. interactive

D. interactively 

25.She left without___________ goodbye. 

A. say

B. to say

C.  said

D. saying 

1
1 tháng 12 2021

11. B

12. B

13. A

14. B

15. B

16. C

17. B

18. A

19. B

20. C

21. C

22. A

23. C

24. A

25. D

30 tháng 6 2019

Đọc đoạn văn dưới đây :

Mexico City is the capital city of Mexico . It's the biggest city in the world . It has a population of 13,6 million .

Tokyo is capital of Japan . It's smaller than Mexico City . It has a population of 12 million .

The capital of England is London . It's the smallest of these three cities . It has a population of 6,3 million .

Viet Nam's capital is small . It has a population of 6,2 million .

Chọn đáp án đúng :

1 . The biggest city in the world is ........

a, London b, Ottawa c, Tokyo d, Mexico City

2. The smallest of these three cities is .........

a, Tokyo b, London c, Mexico City d, Paris

3. London has a population of ..........

a, 6, 3 million b, 13,6 million c, 12 million d, 13,6 million

4. The Capital of Viet Nam is .............

a, Ho Chi Minh b, Hai Phong c, Ha Noi d, Hue

Chúc bạn học tốt!

30 tháng 6 2019

1d, Mexico City

2.b, London

3. a, 6, 3 million

4. c, Ha Noi

Chúc bạn học tốt! hihi

3 tháng 1 2018

(A+10) + (A+11) + (A+12) + (A+13) + ( A+14)=1000

A+10+A+11+A+12+A+13+A+14=1000

5A+(10+11+12+13+14)=1000

5A+60=1000

5A=1000-60

5A=940

A=940:5

A=188

3 tháng 1 2018

(a+10)+(a+11) +(a+12) +(a+13) +(a+ 140) =1000

(a+a+a+a+a)  +(10+11+12+13+140)=1000

5a +186 =1000

 5a          =1000 - 186

5a           =814

 a             =162,8

   t cho mình nha

16 tháng 8 2019

1. Don’t make a fire here. It’s very .................dangerous............... . (danger)

2. Air ...............pollution............. is a big problem in many cities in the world. (pollute)

3. There are a lot of ...............beautiful.............. mountains in VietNam. (beauty)

4. I’m Vietnamese. What’s your .................nationality................ ? (nation )

5. We must be ...................careful................. when we cross the road. (care)

6. There are lots of ..............beautiful............. beaches in Viet Nam. (beauty)

7. Is Mr. Ha a..............businessman............. ? (business)

8. She’s from Viet Nam. What’s her.............nationality.............? (nation)

9. Air............pollution........... is a big problem in the big cities. (pollute)

Chúc bạn học tốt!

16 tháng 8 2019

1. Don’t make a fire here. It’s very dangerous.

2. Air pollution is a big problem in many cities in the world.

3. There are a lot of beautiful mountains in VietNam.

4. I’m Vietnamese. What’s your nationality ?

5. We must be careful when we cross the road.

6. There are lots of beautiful beaches in Viet Nam.

7. Is Mr. Ha a businessman ?

8. She’s from Viet Nam. What’s her nationality?

9. Air pollution is a big problem in the big cities.

13 tháng 7 2020

do 11 và 12 < 17 à 18

=> \(11^{12}< 17^{18}\)

=> \(-11^{12}>-17^{18}\)

13 tháng 7 2020

Ta có: 1112 < 1718

=> -1112 > -1718

=> A > B