—How many workers are there in your factory, Mr Brown?
—________ workers in our factory _________2000.
| A．The number of; are | B．The number of; is |
| C．A number of; are | D．A number of; is |
You should when your parents aren’t at home.
| A．look yourself after | B．take care for yourself |
| C．tale care yourself | D．take care of yourself |
You had better ask your brother _______ playing computer games. It’s bad for him.
| A．to give up | B．not to give up |
| C．to give it up | D．not give it up |
I would like to stay at home instead of .
| A．going out | B．go out | C．went out | D．to go out |
---Must I finish my homework before I go home?
----No, you _____. But you ____finish it before tomorrow.
| A．mustn’t; must | B．needn’t; must |
| C．must; mustn’t | D．needn’t;mustn’t |
You kept me _______so long.
| A．waiting | B．to wait |
| C．am waiting | D．wait |