(2013·四川高考)—Why are your eyes so red? You ________ have slept well last night.
—Yeah, I stayed up late writing a report.
A．can't B．mustn't
C．needn't D．won't
(2013·辽宁高考)Harry is feeling uncomfortable.He ________ too much at the party last night.
A．could drink B．should drink
C．would have drunk D．must have drunk
(2012·江苏高考)Days later, my brother called to say he was all right, but ________ say where he was.
A．mustn't B．shouldn't
C．wouldn't D．mightn't
(2013·新课标全国卷Ⅰ)The door ________ open, no matter how hard she pushed.
A．shouldn't B．couldn't
C．wouldn't D．mightn't
(2011·福建高考)—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
(2012·全国卷Ⅰ)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
