按要求改写句子。

1. The blue bag is the biggest of all. (对画线部分提问) 

     _____ _____ is the biggest of all?

2. He does his homework at home every day. (改为一般疑问句) 

    _____ he _____ his homework at home every day?

3. They are watching TV at home now. (改为同义句)

    They are watching TV at home_____ _____ _____.

4. Tom is a good student. Mary is a good student, too. (合为一句) 

     _____ Tom _____ Mary _____ good students.

5. Sarah went home after the rain stopped. (改为同义句)

    Sarah _____ _____ home _____ the rain stopped.