16.D

17. C

18.B

19.A

20.C

Hack game hả cha nội, nhanh zậy 

XI.

1. with

2.to....in

3.?

4. at

Form: Sth  prevent  Sbd  from  doing  sth

46. Do you know when is the race held.

1.C

2.D

3/A

4.A

5.B

6.D

7.C

8.C

9.C

10.B

47. He finds it difficult to decide what to do

48.He didn't speak slowly enough for me to understand

49. 2000 houses in Australia's bushfire crisis has been destroyed by the fire