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)？
