___ he has finished writing the novel is unknown.
| A．If | B．Whether | C．When | D．While |
Please open the window, _____?
| A．can’t you | B．aren’t you | C．do you | D．will you |
. You _____ return the book now. You can keep it till next week if you like.
| A．can’t | B．mustn’t | C．needn’t | D．may not |
The plant is dead. I _____ it more water.
| A．will give | B．would have given | C．must give | D．should have given |
“Must we do it now?”
“No, you _____.”
| A．won’t | B．needn’t | C．can’t | D．don’t |
The little girl _____ there alone.
| A．not dare go | B．dares not go | C．dare not go | D．dare not to go |