.
Mary quickly closed the door of her room _______ her father could reach it to keep him out.
| A．before | B．when | C．as | D．while |
What's your opinion of Mr Li's request that we ________ spend half an hour reading English aloud every morning?
| A．must | B．would |
| C．should | D．could |
They advocate the proposal we were opposed ________ rediscussed at the next meeting.
| A．to be | B．should be |
| C．to was | D．was |
The little child ________ go out alone at night, so he ________ walk in the dark that night.
| A．doesn't dare to; dared not to | B．daren't to; didn't dare to |
| C．daren't; dared not | D．doesn't dare to; dare not |
—Is it good to look up every new word when I come across it in reading?
—No, you ________， because you are likely to guess the meaning from the context.
| A．don't have to | B．shouldn't |
| C．can't A | D．mustn't |
—Please don't tell anybody.
—I ________. I promise.
| A．can't | B．don't |
| C．won't | D．mustn't |