1. B)根据语境从方框中选择恰当的单词填空，每词限用一次。

list，test，culture，shorts，crazy

1. （1） His sister studies Americanat the university.

3. （2） The boy in blueis my best friend.

5. （3） Before you go to the supermarket，you'd better make a.

7. （4） —Let's swim in the river now.

   —You must be. It's only 5℃!

9. （5） —Tomorrow I'll take a maths.

   —Good luck!