168.unusual.

169.collection.

170.occasions.

171.challenge.

172.pleasure.

12.C.

13.B.

14.C.

15.A.

16.B.

17.A.

18.D.

19.A.

20.D.

C

1.drive -> driving.

2.go -> am going.

3.like -> likes.

4.cook -> cooking.

5.hanging out -> hangs out.

Mình nghĩ so sẽ hợp lý hơn.

1.so.

2.because.

3.but.

4.however.

5.and.

6.Therefore.

7.because.

8. ,but.

9.or.

10.so.

B

15/is.

16/ _will travel.

_is going to travel.

_is traveling.(dùng cái nào cũng đc).

17/ _is cooking.

_cooks.

18/_see that.

_are wearing.

Bằng 10,000dm² .

11/My friend studies English for an hour every night.

12/Be quiet.The baby is sleeping.

13/We alway do our exercise carefully.

14/Look.A man is running after the train.He wants to catch it.