三、用所给动词的适当形式填空：
1. Would you like __________ ( sing ) at the party?
2. Sorry, I kept you ____________ ( wait ) for me so long.
3. It was difficult for him ____________ ( give ) up smoking.
4. My parents want me ____________ ( be ) a teacher.
5. They will go fishing instead of ___________ ( swim ).
6. They decided ___________ ( not tell ) him the bad news.
7. They used to ____________ ( stay ) at home on Sundays.
8. ________ your mother ___________ ( wash ) clothes yet?
9. They __________ ( read ) books when the teacher came in.
10. Computers ____________ ( sell ) almost everywhere.
11. Thanks for _____________ (invite ) me.
12. What about _____________ ( skate ) on the ice?
13. What _____________ your mother __________ ( do ) every day?
14. Kate _____________ ( not fly ) kites now.
15. Keep quiet, please. They _____________ ( have ) a meeting.
，我们将会及时处理。
