--- The floor is dirty. Can anyone clean it?
--- ______. I do it all the time.
| A．Don’t mention it | B．Why you? | C．Not sure. | D．Not me again. |
The new law states that people ________ drive after drinking alcohol.
| A．wouldn't | B．needn't |
| C．won't | D．mustn't |
—Good morning. I've got an appointment with Miss Smith in the Personnel Department.
—Ah, good morning. You ________ be Mrs. Peters.
| A．might | B．must |
| C．would | D．can |
It ________be the postman at the door.It's only six o'clock.
| A．mustn't | B．can't |
| C．won't | D．needn't |
It ________ be the vocabulary that caused you the problem in the exercise because you know a lot of words.
| A．may | B．couldn't |
| C．should | D．needn't |
—What are you doing this Saturday?
—I'm not sure, but I ________ go to the Rolling Stones concert.
| A．must | B．would |
| C．should | D．might |