都这么晚了，帮帮忙吧！拜托拜托拜托了。立马采纳哦！英语。

Answer 1

C

A

B

B

D

二、1、decided to see

2、I decided not to wait for

3、He always offers to help his sister

4、It is easy for us to understand 

希望可以帮到你，O(∩_∩)O谢谢！

追答

谢谢！