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20 tháng 8 2018

1. what would you do if you....a milion dollars?

A,would win B. win C.had won D.won

2. If there.....the rice fields could have been more productive

A.had been enough water B.were enough water C.would be enough water D.are enough water

3. ......... she agreed, you would have done it.

A.If B. had C.should D.would

4.if you inherited a milion pound, what..... with the money?

A.do you do B.will you do C.would you do D.are you going to do

5.tom.....for the examination last week if he..... that it would be so difficult

A.wouldn't enter/had know B.wouldn't have entered/knew C.wouldn't have enter/had know D.wouldn't enter/knew

20 tháng 8 2018

1. what would you do if you....a milion dollars?

A,would win B. win C.had won D.won

2. If there.....the rice fields could have been more productive

A.had been enough water B.were enough water C.would be enough water D.are enough water

3. ......... she agreed, you would have done it.

A.If B. had C.should D.would

4.if you inherited a milion pound, what..... with the money?

A.do you do B.will you do C.would you do D.are you going to do

5.tom.....for the examination last week if he..... that it would be so difficult

A.wouldn't enter/had know B.wouldn't have entered/knew C.wouldn't have enter/had know D.wouldn't enter/knew

1. If I go shopping, I ………some food.  a. buy  b. will buy c. would buy d. would have bought.2. If I find it, I ………you.   a. will tell b. would tell c. had told d. told.3. What would you do if you……………a million dollars?a. would win b. win c. had won d. won.4. They ‘d be hurt if I ……………….a. don’t go b. didn’t go c. hadn’t gone d. wouldn’t go.5. If we took the 6: 30 train, we…………too early.a. would have arrived b. arrived c. will arrived d. would arrive.6. You won’t pass the examination……………you...
Đọc tiếp

1. If I go shopping, I ………some food.  a. buy  b. will buy c. would buy d. would have bought.

2. If I find it, I ………you.   a. will tell b. would tell c. had told d. told.

3. What would you do if you……………a million dollars?

a. would win b. win c. had won d. won.

4. They ‘d be hurt if I ……………….

a. don’t go b. didn’t go c. hadn’t gone d. wouldn’t go.

5. If we took the 6: 30 train, we…………too early.

a. would have arrived b. arrived c. will arrived d. would arrive.

6. You won’t pass the examination……………you study more.

a. as long as b. unless c. if d. whether.

7. If I were to leave my country , I ……………disappointed.

a. probably be b. would have been      c. will be d. would be.

8. If I were in your place, I ……….a trip to England.   a. will make  b. had made  c. made.  d. would make.

9. If I  ………….. you , I’d save some of your lottery winning.   a. be b. were c. am d. was

10. If I had enough money, I ……… abroad to improve my English.

a. will go b. should go c. would go d. should have go to

11. If it …….. convenient, let’s go out for a drink tonight.   a. be b. was c. were d. is

12. If you ……. time, please write to me.  a. have b. have had c. had d. has

13. If  you had the chance, ………… you go finishing?  a. did b. would c. may d. do

14. Trees won’t grow ……….. there is enough water.   a. if b. when c. unless d. as

1
13 tháng 2 2022

1. If I go shopping, I ………some food.  a. buy  b. will buy c. would buy d. would have bought.

2. If I find it, I ………you.   a. will tell b. would tell c. had told d. told.

3. What would you do if you……………a million dollars?

a. would win b. win c. had won d. won.

4. They ‘d be hurt if I ……………….

a. don’t go b. didn’t go c. hadn’t gone d. wouldn’t go.

5. If we took the 6: 30 train, we…………too early.

a. would have arrived b. arrived c. will arrived d. would arrive.

6. You won’t pass the examination……………you study more.

a. as long as b. unless c. if d. whether.

7. If I were to leave my country , I ……………disappointed.

a. probably be b. would have been      c. will be d. would be.

8. If I were in your place, I ……….a trip to England.   a. will make  b. had made  c. made.  d. would make.

9. If I  ………….. you , I’d save some of your lottery winning.   a. be b. were c. am d. was

10. If I had enough money, I ……… abroad to improve my English.

a. will go b. should go c. would go d. should have go to

11. If it …….. convenient, let’s go out for a drink tonight.   a. be b. was c. were d. is

12. If you ……. time, please write to me.  a. have b. have had c. had d. has

13. If  you had the chance, ………… you go finishing?  a. did b. would c. may d. do

 

14. Trees won’t grow ……….. there is enough water.   a. if b. when c. unless d. as

 

13 tháng 2 2022

cảm mơn nhìuu

11 tháng 7 2018

1 if i go shopping,i .................some food

a. buy b. will buy c. would buy d. would have bought

2 if i find it,i....................you

a. will tell b. would tell c. had told d. told

3 what would you do if you ....................a million dollars?

a would win b win c had win d won

4 you won't pass the examination.....................you study more

a .as long as b.unless c if d .whether

5 if only i................you wanted to invest money in business

a had known b.knew c have known d.know

6 if i were in your place,i ................a trip to england

a. will make b. had made c.made d.would make

7 if i ....................you,i'd save some of your lottery winning

a . be b.were c.am d. was

8 if i had enough money,i................abroad to improve my english

a.will go b.go c.would go d.should have to go

9 if it ...............convenient,let's go out for a drink tonight

a .be b.was c.were d is

16 tháng 7 2021

15 D

16 D

17 A

18 B

19 A

16 tháng 7 2021

15 A

16 D

17 D

18 B

19 A

28 tháng 8 2021

1. I would help him if he (ask) …asked………………me.
2. What would you do if you (see) ……saw……………a snake?
3. What would he do if he (have) …had………………a lot of money?
4. John would win more races if he (train) ……trained……………harder.
5. How would your father react if you (leave) ……left……………school?
6. I would gladly tell you the answer if I (know) ………knew…………myself.
7. I would be a millionaire if I (win) ………won…………the first lottery prize.
8. That student could get much higher marks if he (study) ………studied…………harder.
9. The world would be a better place if there (be) ………were…………fewer road accidents.
10. Mr. Nam would be very happy to meet his old friends if they (come) ………came…………to see him.

* Give the correct form of the verb in bracket.1. I would help him if he (ask) ……………………me.2. What would you do if you (see) ……………………a snake?3. What would he do if he (have) ……………………a lot of money?4. John would win more races if he (train) ……………………harder.5. How would your father react if you (leave) ……………………school?6. I would gladly tell you the answer if I (know) ……………………myself.7. I would be a millionaire if I (win) ……………………the first lottery prize.8. That student could get much higher marks if...
Đọc tiếp

* Give the correct form of the verb in bracket.
1. I would help him if he (ask) ……………………me.
2. What would you do if you (see) ……………………a snake?
3. What would he do if he (have) ……………………a lot of money?
4. John would win more races if he (train) ……………………harder.
5. How would your father react if you (leave) ……………………school?
6. I would gladly tell you the answer if I (know) ……………………myself.
7. I would be a millionaire if I (win) ……………………the first lottery prize.
8. That student could get much higher marks if he (study) ……………………harder.
9. The world would be a better place if there (be) ……………………fewer road accidents.
10. Mr. Nam would be very happy to meet his old friends if they (come) ……………………to see him.

1
10 tháng 2 2022

1, asked

2, saw

3, had

4, trained

5, left

6, knew

7, won

8, studied 

9, were

10, came

10 tháng 2 2022

cảm ơn ạ

Bài 2: Chọn đáp án đúng để điền vào chỗ trống If I __________the same problem you had as a child, I might not have succeeded in life as well as you have. a. have B. would have C. had had D. should have 2. I __________you sooner had someone told me you were in the hospital. a. would have visited B. visited C. had visited D. visit 3. __________more help, I would call my neighbor. a. needed B. should I need C. I have needed D. I should need 4. __________then what I know...
Đọc tiếp
Bài 2: Chọn đáp án đúng để điền vào chỗ trống
  1. If I __________the same problem you had as a child, I might not have succeeded in life as well as you have.

a. have B. would have C. had had D. should have

2. I __________you sooner had someone told me you were in the hospital.

a. would have visited B. visited C. had visited D. visit

3. __________more help, I would call my neighbor.

a. needed B. should I need C. I have needed D. I should need

4. __________then what I know yesterday, I would have saved myself a lot of time and trouble over the years.

a. had I known B. did I know C. If I know D. If I would know

5. Do you think there would be less conflict in the world if all people __________the same language?

a. spoke B. speak C. had spoken D. will speak

6. If you can give me one good reason for your acting like this, __________this incident again.

a. I will never mention B. I never mention

c. will I never mention D. I don’t mention

7. If I had known you were asleep, I __________so much noise when I came in.

a. didn’t make B. wouldn’t have made

c. won’t make D. don’t make

8. Unless you __________all of my questions, I can’t do anything to help you.

a. answered B. answer C. would answer D. are answering

9. Had you told me that this was going to happen, I __________it.

a. would have never believed B. don’t believe

c. hadn’t believed D. can’t believe

10. If Jake __________to go on the trip, would you have gone?

a. doesn’t agree B. didn’t agree C. hadn’t agreed D. wouldn’t agree

11. J: “John went to the hospital alone”,

K: “If __________,I would have gone with him”.

a. had he told me B. he had told me C. he has told me D. he would tell me

12. If you __________, I would have brought my friends over to your house yesterday to watch T.V, but I didn’t want to bother you.

a. had studied B-studied C. hadn’t studied D. didn’t study

13. Peter: “Did you need help with your Math last night?”.

Mary: “If I had needed, I __________you”.

a. would call B. called C. would have called D. will call

14. If someone __________ in to the store, smile and say, “May I help you?”

a. comes B. came C. come D. should come

15. “Here’s my phone number”.

“Thanks. I‘ll give you a call if I __________some help tomorrow”

a. will need B. need C. would need D. needed

16. If I didn’t work for an accounting firm, I __________in a bank now.

a. work B. will work C. have worked D. would work

17. The death rate would decrease if hygienic conditions __________improved.

a. was B. is C. were D. had been

18-The education in Japan __________if the basic principles of education had not been taken into consideration.

a. would go down B. would have gone down

c. went down D. had gone down

19. If there __________, the rice fields could have been more productive.

a. had been enough water B. were enough water

c. would be enough water D. are enough water

20. The patient will not recover unless he __________ an operation.

a. had undergone B. would undergo C. undergoes D. was undergoing

2
12 tháng 8 2017
  1. If I __________the same problem you had as a child, I might not have succeeded in life as well as you have.

a. have B. would have C. had had D. should have

2. I __________you sooner had someone told me you were in the hospital.

a. would have visited B. visited C. had visited D. visit

3. __________more help, I would call my neighbor.

a. needed B. should I need C. I have needed D. I should need

4. __________then what I know yesterday, I would have saved myself a lot of time and trouble over the years.

a. had I known B. did I know C. If I know D. If I would know

5. Do you think there would be less conflict in the world if all people __________the same language?

a. spoke B. speak C. had spoken D. will speak

6. If you can give me one good reason for your acting like this, __________this incident again.

a. I will never mention B. I never mention

c. will I never mention D. I don’t mention

7. If I had known you were asleep, I __________so much noise when I came in.

a. didn’t make B. wouldn’t have made

c. won’t make D. don’t make

8. Unless you __________all of my questions, I can’t do anything to help you.

a. answered B. answer C. would answer D. are answering

9. Had you told me that this was going to happen, I __________it.

a. would have never believed B. don’t believe

c. hadn’t believed D. can’t believe

10. If Jake __________to go on the trip, would you have gone?

a. doesn’t agree B. didn’t agree C. hadn’t agreed D. wouldn’t agree

11. J: “John went to the hospital alone”,

K: “If __________,I would have gone with him”.

a. had he told me B. he had told me C. he has told me D. he would tell me

12. If you __________, I would have brought my friends over to your house yesterday to watch T.V, but I didn’t want to bother you.

a. had studied B-studied C. hadn’t studied D. didn’t study

13. Peter: “Did you need help with your Math last night?”.

Mary: “If I had needed, I __________you”.

a. would call B. called C. would have called D. will call

14. If someone __________ in to the store, smile and say, “May I help you?”

a. comes B. came C. come D. should come

15. “Here’s my phone number”.

“Thanks. I‘ll give you a call if I __________some help tomorrow”

a. will need B. need C. would need D. needed

16. If I didn’t work for an accounting firm, I __________in a bank now.

a. work B. will work C. have worked D. would work

17. The death rate would decrease if hygienic conditions __________improved.

a. was B. is C. were D. had been

18-The education in Japan __________if the basic principles of education had not been taken into consideration.

a. would go down B. would have gone down

c. went down D. had gone down

19. If there __________, the rice fields could have been more productive.

a. had been enough water B. were enough water

c. would be enough water D. are enough water

20. The patient will not recover unless he __________ an operation.

a. had undergone B. would undergo C. undergoes D. was undergoing

12 tháng 8 2017
Bài 2: Chọn đáp án đúng để điền vào chỗ trống
  1. If I __________the same problem you had as a child, I might not have succeeded in life as well as you have.

a. have B. would have C. had had D. should have

2. I __________you sooner had someone told me you were in the hospital.

a. would have visited B. visited C. had visited D. visit

3. __________more help, I would call my neighbor.

a. needed B. should I need C. I have needed D. I should need

4. __________then what I know yesterday, I would have saved myself a lot of time and trouble over the years.

a. had I known B. did I know C. If I know D. If I would know

5. Do you think there would be less conflict in the world if all people __________the same language?

a. spoke B. speak C. had spoken D. will speak

6. If you can give me one good reason for your acting like this, __________this incident again.

a. I will never mention B. I never mention

c. will I never mention D. I don’t mention

7. If I had known you were asleep, I __________so much noise when I came in.

a. didn’t make B. wouldn’t have made

c. won’t make D. don’t make

8. Unless you __________all of my questions, I can’t do anything to help you.

a. answered B. answer C. would answer D. are answering

9. Had you told me that this was going to happen, I __________it.

a. would have never believed B. don’t believe

c. hadn’t believed D. can’t believe

10. If Jake __________to go on the trip, would you have gone?

a. doesn’t agree B. didn’t agree C. hadn’t agreed D. wouldn’t agree

11. J: “John went to the hospital alone”,

K: “If __________,I would have gone with him”.

a. had he told me B. he had told me C. he has told me D. he would tell me

12. If you __________, I would have brought my friends over to your house yesterday to watch T.V, but I didn’t want to bother you.

a. had studied B-studied C. hadn’t studied D. didn’t study

13. Peter: “Did you need help with your Math last night?”.

Mary: “If I had needed, I __________you”.

a. would call B. called C. would have called D. will call

14. If someone __________ in to the store, smile and say, “May I help you?”

a. comes B. came C. come D. should come

15. “Here’s my phone number”.

“Thanks. I‘ll give you a call if I __________some help tomorrow”

a. will need B. need C. would need D. needed

16. If I didn’t work for an accounting firm, I __________in a bank now.

a. work B. will work C. have worked D. would work

17. The death rate would decrease if hygienic conditions __________improved.

a. was B. is C. were D. had been

18-The education in Japan __________if the basic principles of education had not been taken into consideration.

a. would go down B. would have gone down

c. went down D. had gone down

19. If there __________, the rice fields could have been more productive.

a. had been enough water B. were enough water

c. would be enough water D. are enough water

20. The patient will not recover unless he __________ an operation.

a. had undergone B. would undergo C. undergoes D. was undergoing

20 tháng 12 2021

3 B - câu điều kiện loại 2                             4. B- Rút gọn câu điều kiện loại 3

5. C - giả định câu điều kiện loại 3               6. give - cấu trúc với bare infinitive dùng với suggest

15 tháng 5 2023

3.B  4.B  5.C  6.A

1.what will you do if you (win) …………. A big price 2- I would have visited you if I (have)..... 3-If you don't work hard, you (not pass) What will you do if you (win). a big price? .time. 4-Joan would buy that car if she (have)..... 5- If he plays well, he (be) will... got into the team. ..money. 6-Jack would have got good mark if he (do)............. ..homework 7-If you (not stop )................. ...borrowing money, you'll be in trouble. 8-If John had finished the work on time,...
Đọc tiếp

1.what will you do if you (win) …………. A big price 2- I would have visited you if I (have)..... 3-If you don't work hard, you (not pass) What will you do if you (win). a big price? .time. 4-Joan would buy that car if she (have)..... 5- If he plays well, he (be) will... got into the team. ..money. 6-Jack would have got good mark if he (do)............. ..homework 7-If you (not stop )................. ...borrowing money, you'll be in trouble. 8-If John had finished the work on time, he (get)..... ...award. 9- If John (try).... 10- If he (eat).. he can do better. .all that, he'll be ill. 11- If she (be). rich, she could give us some money. 12- You will be late if you (not hurry)....... 13- If he were paid higher salary, he (not think) ............about another career. 14-If you had invited Jack, he (come).......... 15- If he (get).... one more mark,he would have passed the exam. 16- We wouldn't do like that if we (be)..... 17- If he had eaten some thing, he (not be ).. .you. ..tired. 18-If it rains, we (stay)........... ...at home. 19- If you came earlier, you (catch).. the train. 20-1 (buy)............ .that book if I had enough money. 21- What would happen if your parents( not give).. ..you any money? 22-If we have a holiday, we (go) ......to the beach. 23-Mark (not be)............. ...injured if he hadn't been drunk. 24- The baby (wake).. ..up if you spoke louder. 25- If I (know)...... ..his address, I would have visited him. 26-Your parents will be happy if you (get)..... ...good marks. the test. 27-If you had told Mark the answer, he (pass) ..a teacher? 28-What would you do if you (be)...... 29-1 (find)..... the house easily if he had given me the correct address. ...out. 30-If the sun hadn't been shining, we (not go )............... ...back? 31- What will happen if your parents (come) ............ 32-If we have enough money, we (go)... ..to the beach. ...too fast. 33-Mark wouldn't have been injured if he (not drive) 34- The baby will wake up if you (speak).............. louder.

1
31 tháng 3 2023

đề lộn xộn quá, bạn xem lại nhé, câu bị ngắt tùm lum :D

III. Correct the verbs form to complete the sentences. 11. If you (go) _____________ away, please write to me. 12. If he (eat) _____________ another cake, he will be sick. 13. I (not do) _____________ that if I (be) _____________ you. 14. If he (take) _____________ my advice, everything can go well. 15. He never does homework. If he (do) __________ his homework, he (not worry) __________ about his exam. 16. What you (do) _____________ if she refuses your invitation? 17. If today (be)...
Đọc tiếp
III. Correct the verbs form to complete the sentences. 11. If you (go) _____________ away, please write to me. 12. If he (eat) _____________ another cake, he will be sick. 13. I (not do) _____________ that if I (be) _____________ you. 14. If he (take) _____________ my advice, everything can go well. 15. He never does homework. If he (do) __________ his homework, he (not worry) __________ about his exam. 16. What you (do) _____________ if she refuses your invitation? 17. If today (be) _____________ Sunday, we (go) _____________ to the beach. 18. Unless they (pass) _____________ their examinations, they would join the army. 19. You (be) _____________ ill if you drink that water. 20. If Tom (go) _____________ to bed earlier, he would not be so tired. 21. If it’s raining heavily, we (not go) _____________ for a donkey ride. 22. If he (try) _____________ hard, he’ll pass the examination. 23. I could understand the French teacher if she (speak) _____________more slowly. 24. If I (finish) _____________ the work in time, I (go) _____________ to the football game. 25. If you (see) _____________ Mary today, please (ask) _____________her to call me. IIII. Complete the sentences with the correct verb form in the bracket. 26. If someone offered to buy you one of those rings, which you (choose) _____________? 27. The flight may be cancelled if the fog (get) _____________ thick. 28. If the milkman (come) _____________, tell him to leave two pints. 29. I (call) _____________ the office if I were you. 30. Someone (sit) _____________ on your glasses if you leave them there. 31. You would hear my explanation if you (not talk) _____________ so much. 32. What you (do) _____________ if you hear the burglar alarm? 33. If you (read) _____________ the instructions carefully, you wouldn’t have answered the wrong question. 34. If Mel (ask) _____________ her teacher, he’d have answered her questions. 35. I would repair the roof myself if I (have) _____________ a long ladder. 36. Unless they turn that radio off, I (go) _____________ mad. 37. If you were made redundant, what you (do) _____________? 38. We’ll have a long way to walk if we (run) _____________ out of petrol here. 39. If you shake that bottle of port, it (not be) _____________ fit to drink. 40. If you spoke louder, your classmates (understand) _____________you. 41. I’ll probably get lost unless he (come) _____________ with me. 42. You (not have) ​ so many accidents if you drove more slowly. 43. If you (wear) _____________ a false beard, nobody would have recognized you. 44. If she (leave) _____________ the fish here, the cat will eat it 45. You (have) _____________ no trouble at school if you had done your homework. V. Choose the best answer A, B, C or D. 46. If I ______ the same problem you had as a child, I might not have succeed in life as well as you have.

A. have​B. would have​C. had had​D. should have

47. I ______ you sooner had someone told me you were in the hospital.

A. would have visited​B. visited​C. had visited​D. visit

48. ______ more help, I would call my neighbor.

A. Needed​B. Should I need​C. I have needed​D. I should need

49. ______ then what I know yesterday, I would have saved myself a lot of time and trouble over the years.

A. Had I known​B. Did I know​C. If I know​D. If I would know

50. Do you think there would be less conflict in the world if all people ______ the same language?

A. spoke​B. speak​C. had spoken​D. will speak

51. If you can give me one good reason for your acting like this, ______this incident again.

A. I will never mention​B. I never mention​C. will I never mention​D. I don’t mention

52. If I had known you were asleep, I ______ so much noise when I came in.

A. didn’t make​B. wouldn’t have made​C. won’t make​D. don’t make

53. Unless you ______ all of my questions, I can’t do anything to help you.

A. answered​B. answer​C. would answer​D. are answering

54. Had you told me that this was going to happen, I ____________ it.

A. would have never believed​B. don’t believe​C. hadn’t believed​D. can’t believe

55. If Jake ______ to go on the trip, would you have gone?

A. doesn’t agree​B. didn’t agree​C. hadn’t agreed​D. wouldn’t agree

56. Jane: “John went to the hospital alone”,​Katy: “If ______, I would have gone with him”.

A. had he told me​B. he had told me​C. he has told me​D. he would tell me

57. If you ______, I would have brought my friends over to your house yesterday to watch T.V, but I didn’t want to bother you.

A. had studied​B. studied​C. hadn’t studied​D. didn’t study

58. Peter: “Did you need help with your Math last night?”​Mary: “If I had needed, I ______ you".

A. would call​B. called​C. would have called​D. will call

59. If someone ______ into the store, smile and say, “May I help you?”

A. comes​B. came​C. come​D. should come

60. “Here’s my phone number”.​“Thanks. I’ll give you a call if I ______ some help tomorrow”

A. will need​B. need​C. would need​D. needed

61. If I didn’t work for an accounting firm, I ______ in a bank now.

A. work​B. will work​C. have worked​D. would work

62. The death rate would decrease if hygienic conditions ______ improved.

A. was​B. is​C. were​D. had been

63. The education in Japan ______ if the basic principles of education had not been taken into consideration.

A. would go down​B. would have gone down​C. went down​D. had gone down

64. If there ______, the rice fields could have been more productive.

A. had been enough water​B. were enough water​C. would be enough water​​D. are enough water

65. The patient will not recover unless he ______ an operation.

A. had undergone​B. would undergo​C. undergoes​D. was undergoing

66. If she ______ him, she would be very happy.

A. would meet​B. will meet​C. met​D. should meet

67. If he ______ a thorough knowledge of English, he could have applied for this post.

A. had had​B. had​C. has​D. has had

68. If I had enough money, I ______ abroad to improve my English.

A. will go​B. would go​C. went​D. should have go to

69. The bench would collapse if they ______ on it.

A. stood​B. stand​C. standing​D. stands

70. If it ______ convenient, let’s go out for a drink tonight.

A. be​B. is​C. was​D. were

VI. Complete the sentences, using the correct form of the words in brackets. 71. People believe that the ____________ water has brought cancer to the local residents. (pollute) 72. Light pollution make us ____________ to see the stars in the sky. (able) 73. Noise is considered as ____________ pollution. (environment)​ 74. ____________ habitats have been destroyed in recent years. (nature) 75. A number of cleaning products contain ____________ chemicals. (harm) 76. Water samples collected at these villages were seriously ____________with bacteria. (contaminate) 77. An ____________ of agrochemicals is pesticides. (illustrate) 78. Contaminants are usually ____________ to aquatic plants. (poison) VII. Fill in each blank with the correct preposition. 79. Land pollution is responsible for damage done ____________ natural habitat of animals. 80. Americans throw ____________ twenty-eight and a half million tons of plastic in landfills every year. 81. Scientists have come up ____________ new ways of saving energy. 82. Thousands of people were exposed ____________ radiation when the nuclear plant exploded. 83. Waste water from many factories which is dumped ____________ water bodies directly causes water pollution.
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