用括号所给单词的适当形式填空。
1. Thank you for _______ (come) to my party.
2. What size _______ (be) your trousers?
3. Every year he spends lots of money _______ (buy) the books.
4. There _______ (be) a lot of juice in the bottle.
5. We must brush (刷) our _______ (tooth) twice a day.
6. — Are these _______ (knife) yours? — Yes.
7. We can _______ (get) fun here.
8. Would you like _______ (come) with me?
9. Look! The girl _______ (sit) under the tree.
10. It takes me 3 hours _______ (finish) my homework.