`13` D `->` by

IV.

`14` the moon

`15` a doctor

`16` a library

`17` chess

V.

A.

`18` T

`19` F

B.

`20` It's in  los Angeles

`21` Yes ,there are

VI.

`1` What about going to Ha Long Bay next summer vacation? 

`2` Vietnam has a lot of beautiful beaches .

`4`  Minh goes to school by bike everyday.

`5` Betty doesn't live far from her office

@ Nấm lùn 🍄

13. D

14. a moon

15. a doctor

16. a library

17. chess

18. True

19. False

20. It's in Los Angeles.

21. Yes, there are

VI.

1. What about going to Ha Long Bay this summer vacition?

2. Vietnam has a lot of beautiful beaches.

4. Minh goes to school by bike every day.

5. Betty doesn't live far her office.