(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
(2009·全国卷Ⅰ)What do you mean, there are only ten tickets？There________be twelve.
A．should B．would
C．will D．shall
(2010·四川高考)—________ I take the book out?
—I'm afraid not.
A．Will B．May
C．Must D．Need
(2010·辽宁高考)Doctors say that exercise is important for health, but it ________ be regular exercise.
A．can B．will
C．must D．may
