1 D

2 A

3 B

4 B

5 C

6 C

7 D

8 B

9 D

40. He spent 30 minutes watching the play.

39. He wishes he had not treated his sister so badly last week.

38. Some years back teenagers did not pay as much attention on Rap as they do nowadays.

37. No sooner had she arrived than things went wrong

IV

1 renewable

2 alternative

3 installing

4 station

5 heat

III

1 D

2 B

3 C

4 B

5 D

II

1 B

2 A

3 D

4 D

5 B

I

1 A

2 B

3 C

4 D

5 D

I’m pleased that you want to know more about environment.

Vietnam school will change in the future because of new technology.

Scientists are currently looking at the chance of life on Mars.

Your grandfather and I are delighted that you passed your English exam.

The wind and the rain started to blow and became heavier.