题目内容：

 

1.---Andy, let’s go          (camp)! ---Good idea!

2.What __________ (happen) to you just now, Ricky?

3.The boy was surprised ______________ (see) a snake in front of him.

4.It’s raining outside. He has to________ (stay) at home.

5.The student _________ (stand) up and answered the question quickly.