You _____ read a book in the sun—it'll do harm to your eyes．
| A．couldn't | B．wouldn't | C．needn't | D．mustn't |
It’s a fine day. Let’s go fishing, _____.
| A．won’t we | B．will we | C．don’t we | D．shall we |
— May I stop here? — No, you _____.
| A．mustn’t | B．might not | C．needn’t | D．won’t |
We _____ for her because she never came.
| A．mustn’t have waited | B．shouldn’t have waited | C．mustn’t wait | D．needn’t wait |
Please open the window, _____?
| A．can’t you | B．aren’t you | C．do you | D．will you |
It’s still early, you _____.
| A．mustn’t hurry | B．wouldn’t hurry | C．may not hurry | D．don’t have to hurry |