He doesn’t think the question of ______they are boys or girls is important .
| A．if | B．whether | C．which | D．that |
The door ________ open, no matter how hard she pushed.
| A．shouldn't | B．couldn't |
| C．wouldn't | D．mightn't |
—Shall I inform him of the change of the schedule right now?
—I am afraid you ________， in case he comes late for the meeting.
| A．will | B．must |
| C．may | D．can |
I ________ use a clock to wake me up because at six o'clock each morning the train comes by my house.
| A．couldn't | B．mustn't |
| C．shouldn't | D．needn't |
What do you mean, there are only ten tickets？There________be twelve.
| A．should | B．would |
| C．will | D．shall |
—________ I take the book out?
—I'm afraid not.
| A．Will | B．May |
| C．Must | D．Need |