Question

机会难得,会几题就告诉我几题

Answer 1

今天熬夜看书,帮你写作业权当放松了..

13/boy's

14/classes

15/20th

16/useful

17/has,had

18/is sleeping,sleep

二

1/on

2/on

3/for

4/about

5/to

6/on

7/with

三

1/Science