1. 选用所给的单词填空。

delicious, studying, tomorrow, use, house

1. （1） They are not playing. They are  for the test.
3. （2） —What is she doing?

   —She is cleaning her .

5. （3） My mother can make  zongzi.
7. （4） Must I come ?
9. （5） Many students can  computers for the homework.