1. You could               (自愿服务)in a hospital.
2. I'd like to help               (无家可归)people.
3. We often visit               (小学的，初级的)schools and help the teachers.
4. A girl won a million dollars in the              (抽奖).
5. Before you borrow something from a friend, you'd better ask his or her 　     　 (许可)

B. 根据句意填空。

1. Whose is that book? It              be Liu Mei's.
2. I don't like art at all. But my sister              art to music.
3.               are from Italy. They like to eat pizza.
4. He can't walk and he sits in a              .
5. It's easy to be angry but it's hard to              .