(Điền vào chỗ trống dạng đúng của các từ đã cho. Không sử dụng dạng viết tắt.)

1. If I (finish) ……..……..a bottle of water, I (put) …………..…….it into the recycling bin.

2. The climate (be) …………..….. warmer if the amount of carbon dioxide in the atmosphere (increase) …………………..

3. If Anh (see) ………………..a used water bottle on the pavement, she (pick) ……………… it up and put + public, I (remind) ………..…. him not to do that again.

5. People's health (be) ………………..better if the air (be) ………………..cleaner.

6. If she (continue) ………………..to make noise, other people (be) …………….. very annoyed.

7 .Floods (decrease) ……………….. if trees (be) ……………… planted more.

8 .If we (talk) …………..……. to him about the effects of environmental pollution, he (not put) ……………….…. rubbish into the river.

(Chọn đáp án đúng nhất hoàn thành các câu sau.)

1. If the river is __________, many fishes __________.

A. polluted - will die                         B. polluted - dies

C. is polluted – dies                        D. is polluted - will die

2. People __________the environment if they __________ or cycle more.

A. help - will walk                                      B. help - walk

C. will help – walk                           D. will help - will walk

3. If plants __________ more, we __________enough food to feed everyone.

A. die - will have                              B. die - won't have

C. will die - won't have                    D. won't die - won't have

4. If people __________ the rubbish, it __________harmful smoke.

A. burn - will produce                      B. burns - will produce

C. will burn – produce                    D. will burn - produces

5. If Mai __________ trees and flowers in her garden, it __________greener and more beautiful.

A. grow - will be                               B. grows - will be

C. grow - won't be                           D. grows - won't be

6. If she __________ hard, she __________ in the examination.

A. study - will fail                             B. studies - will failed

C. doesn't study - will fails             D. doesn't study - will fail