用所给单词的相应形式填空。

1. Everything ______________ (go) well.    

2. Five years ago，he ______________ (live) in Shanghai, but now he ______________ (be)

in Wuhan, maybe in five years he ______________ (move) to Nanjing.    

3. There ______________ (be) seven days in a week.    

4. The students will go to the Summer Palace if the rain ______________ (stop) tomorrow.    

5. The man is not a doctor now, but he ______________ (be) before.

6. One of my e-pals ______________(keep ) a pet snake in his house.

7. We can use the knife ______________(cut) apples.

8.When ______________ you ______________(begin) to be a volunteer(志愿者)？