(2011·全国卷Ⅰ)They ________have arrived at lunchtime but their flight was delayed.
#86528
A
will
B
can
C
must
D
should
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You _____ phone him if you want to, but you _____! He will surely phone you.
#90175
A
may; mustn’t
B
have to; needn’t
C
can; needn’t
D
can; doesn’t need
Judging from what has happened here, it’s high time that we _______effective measures to prevent this.
#88094
A
could take
B
must take
C
should take
D
would take
Jack,you’re so lazy!This job hours ago.
#89651
A
should finish
B
must have finished
C
ought to have been finished
D
was about to finish
---Sorry, Professor Smith. I didn’t finish the assignment yesterday.---Oh, you___________ have done it as yesterday was the deadline.
#88212
A
must
B
mustn’t
C
should
D
shouldn’t
John ___ such a thing about you. He never speaks ill of you behind your back.
#87863
A
can’t have said
B
might not have said
C
couldn’t say
D
mustn’t have said