If water pollution gets more serious in the future, it will affect the development of economy and society

If Mr Quang did not work in a noisy environment, his hearing would not become worse

If teachers taught environmental issues at school, students would be more aware of protecting the environment

8 will - buy

9 will move

10 help

11 finished

12 won't do

13 will use

14 won't invite

1 is staying

2 was

3 will be

4 will have

5 rented

6 will look

7 play

1 will move

2 help

3 finished

4 won't do

5 will use

6 won't invite

7 work

8 will dance

9 will rain

1 C

2 D

3 B

1 will live

2 won't cook

3 will - visit

4 won't fly

5 will sleep

1 This question can't be answered

2 It is boring to stay in the same place so long

3 A lot of souvenirs were bought when they were on holiday

4 This house was too expensive for us to buy

5 Who does this house belong to?

6 I apologize for being rude to you yesterday

1 A

2 C

3 C

4 C

5 D

1 B

2 C

3 D

4 C

5 A