12. ---Where is Tom?

---He hasn't come to school today. I think he________ be ill.

A. has to B. should C. may D. need

11. We went to travel with some friends of____________.

A. us B. ours C. our D. ourselves

9. This machine________ (use) for cleaning the house. 10. The man spoke very slowly. He wanted me_________ (understand) what he said.

8. The baby is sleeping. Could you please stop________ (make) so much noise?

7. You _________ (not pass) the exam if you don't work hard enough.

6. It's five o'clock. The students_________ (play) football on the playground.

5. The baby needs____________(喂养).

4. The heavy rain _______(造成)the floods

3. We sell_____(活的) fish.

2. My mother was always______( 通情达理)