K
Khách

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

1. Air pollution causes people’s _________problems.A. hearing       B. smelling       C. breathing         D. feeling2. He said he_____________in that factory.A. work                      B. works            C. worked           D. is working3. Australia, The USA, Great Britain and _________speak English.A. Viet Nam              B. China                     C. Canada                  D. Russia4. The ___________language of Viet Nam is Vietnamese.A. official                B. native               ...
Đọc tiếp

1. Air pollution causes people’s _________problems.

A. hearing       B. smelling       C. breathing         D. feeling

2. He said he_____________in that factory.

A. work                      B. works            C. worked           D. is working

3. Australia, The USA, Great Britain and _________speak English.

A. Viet Nam              B. China                     C. Canada                  D. Russia

4. The ___________language of Viet Nam is Vietnamese.

A. official                B. native                      C. foreign                   D. unique

5. Which are the most common____________disasters in your country?

- Floods and typhoons.

A. nature                   B. natural                    C. naturally               D. inatural

6. If we __________more trees, there will be less air pollution.

A. plant                     B. planted                   C. planting                 D. plants

7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79.

A. destroyed             B. was destroyed       C. is destroyed         D. destroys

8. He would buy that car if he __________enough money.

A. has                   B. have                 C. had had            D. had

9.If I ……….a lot of money now, I …………..a new car.

A. have /will buy  B. have / would buy       C. had/ will buy    D. had/ would buy.

10.If I ……………you, I …………….do that.

A. am/ will           B. were /would               C. were/ will         D. had been/ would.

11.She ……….terrible upset if I lost this ring.

a. will be               b. would be          c. were                           d. had been.

12.If someone…………in here with a gun, I would be very frightened.

a. would walk                b. walks                c. had walked                 d. walked.

13.What would happen if you ……………..to work tomorrow?

a. don’t go            b. didn’t go          c. won’t go           d. wouldn’t go.

14.We ‘ll get wet if we ………….out.

a. go                     b. did go               c. went                           d. had gone.

15.If I go shopping, I ………some food.

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

16. If I were you, I ________do something to prevent him from littering.

A. would              B. did                             C. will                  D. do

17. Many houses___________in the hurricane last night in Nghe An.

A. were destroyed          B. destroyed                  C. are destroyed   D. is destroyed

2
13 tháng 3 2022

1. Air pollution causes people’s _________problems.

A. hearing       B. smelling       C. breathing         D. feeling

2. He said he_____________in that factory.

A. work                      B. works            C. worked           D. is working

3. Australia, The USA, Great Britain and _________speak English.

A. Viet Nam              B. China                     C. Canada                  D. Russia

4. The ___________language of Viet Nam is Vietnamese.

A. official                B. native                      C. foreign                   D. unique

5. Which are the most common____________disasters in your country?

- Floods and typhoons.

A. nature                   B. natural                    C. naturally               D. inatural

6. If we __________more trees, there will be less air pollution.

A. plant                     B. planted                   C. planting                 D. plants

7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79.

A. destroyed             B. was destroyed       C. is destroyed         D. destroys

8. He would buy that car if he __________enough money.

A. has                   B. have                 C. had had            D. had

9.If I ……….a lot of money now, I …………..a new car.

A. have /will buy  B. have / would buy       C. had/ will buy    D. had/ would buy.

10.If I ……………you, I …………….do that.

A. am/ will           B. were /would               C. were/ will         D. had been/ would.

11.She ……….terrible upset if I lost this ring.

a. will be               b. would be          c. were                           d. had been.

12.If someone…………in here with a gun, I would be very frightened.

a. would walk                b. walks                c. had walked                 d. walked.

13.What would happen if you ……………..to work tomorrow?

a. don’t go            b. didn’t go          c. won’t go           d. wouldn’t go.

14.We ‘ll get wet if we ………….out.

a. go                     b. did go               c. went                           d. had gone.

15.If I go shopping, I ………some food.

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

16. If I were you, I ________do something to prevent him from littering.

A. would              B. did                             C. will                  D. do

17. Many houses___________in the hurricane last night in Nghe An.

A. were destroyed          B. destroyed                  C. are destroyed   D. is destroyed

13 tháng 3 2022

1. Air pollution causes people’s _________problems.

A. hearing       B. smelling       C. breathing         D. feeling

2. He said he_____________in that factory.

A. work                      B. works            C. worked           D. is working

3. Australia, The USA, Great Britain and _________speak English.

A. Viet Nam              B. China                     C. Canada                  D. Russia

4. The ___________language of Viet Nam is Vietnamese.

A. official                B. native                      C. foreign                   D. unique

5. Which are the most common____________disasters in your country?

- Floods and typhoons.

A. nature                   B. natural                    C. naturally               D. inatural

6. If we __________more trees, there will be less air pollution. ( Câu điều kiện loại 1 )

A. plant                     B. planted                   C. planting                 D. plants

7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79.

A. destroyed             B. was destroyed       C. is destroyed         D. destroys

8. He would buy that car if he __________enough money. ( Câu điều kiện loại 2 )

A. has                   B. have                 C. had had            D. had

9.If I ……….a lot of money now, I …………..a new car. ( Câu điều kiện loại 2, diễn tả một sự việc, hành động không có thật ở hiện tại )

A. have /will buy  B. have / would buy       C. had/ will buy    D. had/ would buy.

10.If I ……………you, I …………….do that.

A. am/ will           B. were /would               C. were/ will         D. had been/ would.

11.She ……….terrible upset if I lost this ring.

a. will be               b. would be          c. were                           d. had been.

12.If someone…………in here with a gun, I would be very frightened.

a. would walk                b. walks                c. had walked                 d. walked.

13.What would happen if you ……………..to work tomorrow?

a. don’t go            b. didn’t go          c. won’t go           d. wouldn’t go.

14.We ‘ll get wet if we ………….out.

a. go                     b. did go               c. went                           d. had gone.

15.If I go shopping, I ………some food.

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

16. If I were you, I ________do something to prevent him from littering.

A. would              B. did                             C. will                  D. do

17. Many houses___________in the hurricane last night in Nghe An.

A. were destroyed          B. destroyed                  C. are destroyed   D. is destroyed

1. Air pollution causes people’s _________problems.A. hearing       B. smelling       C. breathing         D. feeling2. He said he_____________in that factory.A. work                      B. works            C. worked           D. is working3. Australia, The USA, Great Britain and _________speak English.A. Viet Nam              B. China                     C. Canada                  D. Russia4. The ___________language of Viet Nam is Vietnamese.A. official                B. native               ...
Đọc tiếp

1. Air pollution causes people’s _________problems.

A. hearing       B. smelling       C. breathing         D. feeling

2. He said he_____________in that factory.

A. work                      B. works            C. worked           D. is working

3. Australia, The USA, Great Britain and _________speak English.

A. Viet Nam              B. China                     C. Canada                  D. Russia

4. The ___________language of Viet Nam is Vietnamese.

A. official                B. native                      C. foreign                   D. unique

5. Which are the most common____________disasters in your country?

- Floods and typhoons.

A. nature                   B. natural                    C. naturally               D. inatural

6. If we __________more trees, there will be less air pollution.

A. plant                     B. planted                   C. planting                 D. plants

7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79.

A. destroyed             B. was destroyed       C. is destroyed         D. destroys

8. He would buy that car if he __________enough money.

A. has                   B. have                 C. had had            D. had

9.If I ……….a lot of money now, I …………..a new car.

A. have /will buy  B. have / would buy       C. had/ will buy    D. had/ would buy.

10.If I ……………you, I …………….do that.

A. am/ will           B. were /would               C. were/ will         D. had been/ would.

11.She ……….terrible upset if I lost this ring.

a. will be               b. would be          c. were                           d. had been.

12.If someone…………in here with a gun, I would be very frightened.

a. would walk                b. walks                c. had walked                 d. walked.

13.What would happen if you ……………..to work tomorrow?

a. don’t go            b. didn’t go          c. won’t go           d. wouldn’t go.

14.We ‘ll get wet if we ………….out.

a. go                     b. did go               c. went                           d. had gone.

15.If I go shopping, I ………some food.

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

16. If I were you, I ________do something to prevent him from littering.

A. would              B. did                             C. will                  D. do

17. Many houses___________in the hurricane last night in Nghe An.

A. were destroyed          B. destroyed                  C. are destroyed   D. is destroyed

1
13 tháng 3 2022

1c, 2c, 3c, 4a, 5b, 6a, 7b, 8d

I. Circle the letter A, B, C or D to indicate the correct answer to each sentence 1. Air pollution causes people’s _________problems.A. hearing       B. smelling       C. breathing         D. feeling2. He said he_____________in that factory.A. work                      B. works            C. worked           D. is working3. Australia, The USA, Great Britain and _________speak English.A. Viet Nam              B. China                     C. Canada                  D. Russia4. The...
Đọc tiếp

I. Circle the letter A, B, C or D to indicate the correct answer to each sentence

1. Air pollution causes people’s _________problems.

A. hearing       B. smelling       C. breathing         D. feeling

2. He said he_____________in that factory.

A. work                      B. works            C. worked           D. is working

3. Australia, The USA, Great Britain and _________speak English.

A. Viet Nam              B. China                     C. Canada                  D. Russia

4. The ___________language of Viet Nam is Vietnamese.

A. official                B. native                      C. foreign                   D. unique

5. Which are the most common____________disasters in your country?

- Floods and typhoons.

A. nature                   B. natural                    C. naturally               D. inatural

6. If we __________more trees, there will be less air pollution.

A. plant                     B. planted                   C. planting                 D. plants

7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79.

A. destroyed             B. was destroyed       C. is destroyed         D. destroys

8. He would buy that car if he __________enough money.

A. has                   B. have                 C. had had            D. had

9.If I ……….a lot of money now, I …………..a new car.

A. have /will buy  B. have / would buy       C. had/ will buy    D. had/ would buy.

10.If I ……………you, I …………….do that.

A. am/ will           B. were /would               C. were/ will         D. had been/ would.

11.She ……….terrible upset if I lost this ring.

a. will be               b. would be          c. were                           d. had been.

12.If someone…………in here with a gun, I would be very frightened.

a. would walk                b. walks                c. had walked                 d. walked.

13.What would happen if you ……………..to work tomorrow?

a. don’t go            b. didn’t go          c. won’t go           d. wouldn’t go.

14.We ‘ll get wet if we ………….out.

a. go                     b. did go               c. went                           d. had gone.

15.If I go shopping, I ………some food.

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

16. If I were you, I ________do something to prevent him from littering.

A. would              B. did                             C. will                  D. do

17. Many houses___________in the hurricane last night in Nghe An.

A. were destroyed          B. destroyed                  C. are destroyed   D. is destroyed

0
I. Circle the letter A, B, C or D to indicate the correct answer to each sentence 1. Air pollution causes people’s _________problems.A. hearing       B. smelling       C. breathing         D. feeling2. He said he_____________in that factory.A. work                      B. works            C. worked           D. is working3. Australia, The USA, Great Britain and _________speak English.A. Viet Nam              B. China                     C. Canada                  D. Russia4. The...
Đọc tiếp

I. Circle the letter A, B, C or D to indicate the correct answer to each sentence

1. Air pollution causes people’s _________problems.

A. hearing       B. smelling       C. breathing         D. feeling

2. He said he_____________in that factory.

A. work                      B. works            C. worked           D. is working

3. Australia, The USA, Great Britain and _________speak English.

A. Viet Nam              B. China                     C. Canada                  D. Russia

4. The ___________language of Viet Nam is Vietnamese.

A. official                B. native                      C. foreign                   D. unique

5. Which are the most common____________disasters in your country?

- Floods and typhoons.

A. nature                   B. natural                    C. naturally               D. inatural

6. If we __________more trees, there will be less air pollution.

A. plant                     B. planted                   C. planting                 D. plants

7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79.

A. destroyed             B. was destroyed       C. is destroyed         D. destroys

8. He would buy that car if he __________enough money.

A. has                   B. have                 C. had had            D. had

9.If I ……….a lot of money now, I …………..a new car.

A. have /will buy  B. have / would buy       C. had/ will buy    D. had/ would buy.

10.If I ……………you, I …………….do that.

A. am/ will           B. were /would               C. were/ will         D. had been/ would.

11.She ……….terrible upset if I lost this ring.

a. will be               b. would be          c. were                           d. had been.

12.If someone…………in here with a gun, I would be very frightened.

a. would walk                b. walks                c. had walked                 d. walked.

13.What would happen if you ……………..to work tomorrow?

a. don’t go            b. didn’t go          c. won’t go           d. wouldn’t go.

14.We ‘ll get wet if we ………….out.

a. go                     b. did go               c. went                           d. had gone.

15.If I go shopping, I ………some food.

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

16. If I were you, I ________do something to prevent him from littering.

A. would              B. did                             C. will                  D. do

17. Many houses___________in the hurricane last night in Nghe An.

A. were destroyed          B. destroyed                  C. are destroyed   D. is destroyed

3
8 tháng 3 2022

I. Circle the letter A, B, C or D to indicate the correct answer to each sentence

1. Air pollution causes people’s _________problems.

A. hearing       B. smelling       C. breathing         D. feeling

2. He said he_____________in that factory.

A. work                      B. works            C. worked           D. is working

3. Australia, The USA, Great Britain and _________speak English.

A. Viet Nam              B. China                     C. Canada                  D. Russia

4. The ___________language of Viet Nam is Vietnamese.

A. official                B. native                      C. foreign                   D. unique

5. Which are the most common____________disasters in your country?

- Floods and typhoons.

A. nature                   B. natural                    C. naturally               D. inatural

6. If we __________more trees, there will be less air pollution.

A. plant                     B. planted                   C. planting                 D. plants

7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79.

A. destroyed             B. was destroyed       C. is destroyed         D. destroys

8. He would buy that car if he __________enough money.

A. has                   B. have                 C. had had            D. had

9.If I ……….a lot of money now, I …………..a new car.

A. have /will buy  B. have / would buy       C. had/ will buy    D. had/ would buy.

10.If I ……………you, I …………….do that.

A. am/ will           B. were /would               C. were/ will         D. had been/ would.

11.She ……….terrible upset if I lost this ring.

a. will be               b. would be          c. were                           d. had been.

12.If someone…………in here with a gun, I would be very frightened.

a. would walk                b. walks                c. had walked                 d. walked.

13.What would happen if you ……………..to work tomorrow?

a. don’t go            b. didn’t go          c. won’t go           d. wouldn’t go.

14.We ‘ll get wet if we ………….out.

a. go                     b. did go               c. went                           d. had gone.

15.If I go shopping, I ………some food.

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

16. If I were you, I ________do something to prevent him from littering.

A. would              B. did                             C. will                  D. do

17. Many houses___________in the hurricane last night in Nghe An.

A. were destroyed          B. destroyed                  C. are destroyed   D. is destroyed

8 tháng 3 2022

1C

2C

3C

4A

5B

6A

7B

8D

10D

11B

1A

13B

1A

15D

16D

17D

I. Circle the letter A, B, C or D to indicate the correct answer to each sentence 1. Air pollution causes people’s _________problems.A. hearing       B. smelling       C. breathing         D. feeling2. He said he_____________in that factory.A. work                      B. works            C. worked           D. is working3. Australia, The USA, Great Britain and _________speak English.A. Viet Nam              B. China                     C. Canada                  D. Russia4. The...
Đọc tiếp

I. Circle the letter A, B, C or D to indicate the correct answer to each sentence

1. Air pollution causes people’s _________problems.

A. hearing       B. smelling       C. breathing         D. feeling

2. He said he_____________in that factory.

A. work                      B. works            C. worked           D. is working

3. Australia, The USA, Great Britain and _________speak English.

A. Viet Nam              B. China                     C. Canada                  D. Russia

4. The ___________language of Viet Nam is Vietnamese.

A. official                B. native                      C. foreign                   D. unique

5. Which are the most common____________disasters in your country?

- Floods and typhoons.

A. nature                   B. natural                    C. naturally               D. inatural

6. If we __________more trees, there will be less air pollution.

A. plant                     B. planted                   C. planting                 D. plants

7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79.

A. destroyed             B. was destroyed       C. is destroyed         D. destroys

8. He would buy that car if he __________enough money.

A. has                   B. have                 C. had had            D. had

9.If I ……….a lot of money now, I …………..a new car.

A. have /will buy  B. have / would buy       C. had/ will buy    D. had/ would buy.

10.If I ……………you, I …………….do that.

A. am/ will           B. were /would               C. were/ will         D. had been/ would.

11.She ……….terrible upset if I lost this ring.

a. will be               b. would be          c. were                           d. had been.

12.If someone…………in here with a gun, I would be very frightened.

a. would walk                b. walks                c. had walked                 d. walked.

13.What would happen if you ……………..to work tomorrow?

a. don’t go            b. didn’t go          c. won’t go           d. wouldn’t go.

14.We ‘ll get wet if we ………….out.

a. go                     b. did go               c. went                           d. had gone.

15.If I go shopping, I ………some food.

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

16. If I were you, I ________do something to prevent him from littering.

A. would              B. did                             C. will                  D. do

17. Many houses___________in the hurricane last night in Nghe An.

A. were destroyed          B. destroyed                  C. are destroyed   D. is destroyed

 

1
8 tháng 3 2022

ai dúp mình với mai mình thi anh 15 phút 

I. Circle the letter A, B, C or D to indicate the correct answer to each sentence 1. Air pollution causes people’s _________problems.A. hearing       B. smelling       C. breathing         D. feeling2. He said he_____________in that factory.A. work                      B. works            C. worked           D. is working3. Australia, The USA, Great Britain and _________speak English.A. Viet Nam              B. China                     C. Canada                  D. Russia4. The...
Đọc tiếp

I. Circle the letter A, B, C or D to indicate the correct answer to each sentence

1. Air pollution causes people’s _________problems.

A. hearing       B. smelling       C. breathing         D. feeling

2. He said he_____________in that factory.

A. work                      B. works            C. worked           D. is working

3. Australia, The USA, Great Britain and _________speak English.

A. Viet Nam              B. China                     C. Canada                  D. Russia

4. The ___________language of Viet Nam is Vietnamese.

A. official                B. native                      C. foreign                   D. unique

5. Which are the most common____________disasters in your country?

- Floods and typhoons.

A. nature                   B. natural                    C. naturally               D. inatural

6. If we __________more trees, there will be less air pollution.

A. plant                     B. planted                   C. planting                 D. plants

7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79.

A. destroyed             B. was destroyed       C. is destroyed         D. destroys

8. He would buy that car if he __________enough money.

A. has                   B. have                 C. had had            D. had

9.If I ……….a lot of money now, I …………..a new car.

A. have /will buy  B. have / would buy       C. had/ will buy    D. had/ would buy.

10.If I ……………you, I …………….do that.

A. am/ will           B. were /would               C. were/ will         D. had been/ would.

11.She ……….terrible upset if I lost this ring.

a. will be               b. would be          c. were                           d. had been.

12.If someone…………in here with a gun, I would be very frightened.

a. would walk                b. walks                c. had walked                 d. walked.

13.What would happen if you ……………..to work tomorrow?

a. don’t go            b. didn’t go          c. won’t go           d. wouldn’t go.

14.We ‘ll get wet if we ………….out.

a. go                     b. did go               c. went                           d. had gone.

15.If I go shopping, I ………some food.

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

16. If I were you, I ________do something to prevent him from littering.

A. would              B. did                             C. will                  D. do

17. Many houses___________in the hurricane last night in Nghe An.

A. were destroyed          B. destroyed                  C. are destroyed   D. is destroyed

1
8 tháng 3 2022

1. Air pollution causes people’s _________problems.

A. hearing       B. smelling       C. breathing         D. feeling

2. He said he_____________in that factory.

A. work                      B. works            C. worked           D. is working

3. Australia, The USA, Great Britain and _________speak English.

A. Viet Nam              B. China                     C. Canada                  D. Russia

4. The ___________language of Viet Nam is Vietnamese.

A. official                B. native                      C. foreign                   D. unique

5. Which are the most common____________disasters in your country?

- Floods and typhoons.

A. nature                   B. natural                    C. naturally               D. inatural

6. If we __________more trees, there will be less air pollution.

A. plant                     B. planted                   C. planting                 D. plants

7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79.

A. destroyed             B. was destroyed       C. is destroyed         D. destroys

8. He would buy that car if he __________enough money.

A. has                   B. have                 C. had had            D. had

9.If I ……….a lot of money now, I …………..a new car.

A. have /will buy  B. have / would buy       C. had/ will buy    D. had/ would buy.

10.If I ……………you, I …………….do that.

A. am/ will           B. were /would               C. were/ will         D. had been/ would.

11.She ……….terrible upset if I lost this ring.

a. will be               b. would be          c. were                           d. had been.

12.If someone…………in here with a gun, I would be very frightened.

a. would walk                b. walks                c. had walked                 d. walked.

13.What would happen if you ……………..to work tomorrow?

a. don’t go            b. didn’t go          c. won’t go           d. wouldn’t go.

14.We ‘ll get wet if we ………….out.

a. go                     b. did go               c. went                           d. had gone.

15.If I go shopping, I ………some food.

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

16. If I were you, I ________do something to prevent him from littering.

A. would              B. did                             C. will                  D. do

17. Many houses___________in the hurricane last night in Nghe An.

A. were destroyed          B. destroyed                  C. are destroyed   D. is destroyed

24 tháng 3 2018

1)Complete the sentences with the words below

Air pollution, Global warming; Land pollution;Noise pollution; Deforestation;Climate change

1. Deforestation causes problems on the skin.

2. Global warming causes water animals to die.

3. Noise pollution causes stress and hearing loss.

4. Air pollution makes breathing difficult and makes you cough .

5. Climate changing makes seasons change.

6. Land pollution makes plants and animals die.

2)Complete with a, e, i, o, u.

1.rubbish

2.plastic

3.pollution

4.recycle

5.reduc

6.deforestation

23 tháng 3 2018

2)

1. Rubbish

2. Plastic

3. Pollution

4. Recycle

5. Reduce

6. d...f....station

điền vào chỗ trống các từ đúng water pollution ; rubbish ; deforestation ; soil pollution ; air pollution ; noise pollution ; water level ; reduce ; reuse ; recycle.1, ........................................... happens when water in the rivers , lakes , seas is dirty.2, if the earth is warmer , the ....................................... will rise .3, the things you throw away is called.......................................4, ............................................ causes...
Đọc tiếp

điền vào chỗ trống các từ đúng 

water pollution ; rubbish ; deforestation ; soil pollution ; air pollution ; noise pollution ; water level ; reduce ; reuse ; recycle.

1, ........................................... happens when water in the rivers , lakes , seas is dirty.

2, if the earth is warmer , the ....................................... will rise .

3, the things you throw away is called.......................................

4, ............................................ causes hearing and sleeping problem.

5, ............................................ causes floods ang makes animals' home disappear

6, ................................ means using somethings again.

7, you should walk more to ....................................... air pollution .

8, we can ............................................................ paper , glass , plastic bottles ...

9, ........................................ makes plants die and causes lack of food.

10, .................................................. causes breathing problems and makes the earth warmer.

 

2
6 tháng 5 2016

1. Water poluttion

2. Water level

3. Rubbish

4.Noise pollution

5. Deforestion

6.Reuse

7. Reduce

8. Recycle

9. Soil pollution

10. Air pollution

Chúc bạn học tốtbanh

6 tháng 5 2016
  1. water pollution
  2. water level
  3. rubbish
  4. noise pollution
  5. deforestation 
  6. reuse
  7. reduce
  8. recycle
  9. soil pollution
  10. air pollution
20 tháng 8 2017

1. water pollution

2.water level

3.noise pollution

4.rubbish

5.deforestation

6.recycle

7. reduce

8.reuse

9.soil pollution

10.air pollution