用所给单词的适当形式填空。
1. We watch Bob __________ (buy) a basketball!
2. Jenny thinks I __________ (be) at home.
3. __________ (Li Rui) father is a teacher.
4. Would you like __________ (drink) milk?
5. Let's __________ (play) a game.
6. Do you want __________ (go) with me?
7. There __________ (be) some students here.
8. How many __________ (book) do you have?