(2013·新课标Ⅰ,29)The door________open,no matter how hard she pushed.
#62491
A
shouldn't
B
couldn't
C
wouldn't
D
mightn't
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(2013·皖南八校一模)I felt surprised that anyone of his intelligence ________ such an easy test.
#62427
A
might have failed
B
could have failed
C
should have failed
D
must have failed
—Please don’t tell anybody.—I     . I promise.
#62237
A
can't
B
don’t
C
won’t
D
mustn’t
---Must we leave the classroom now?---No, you _____. You _____ leave after the bell rings.
#75608
A
mustn't; are allowed to
B
don't have to; might
C
needn't; can
D
can't; are supposed to
You_____ all those calculations! We have a computer to do that sort of thing.
#63501
A
needn’t have done
B
must not have done
C
shouldn’t have done
D
can not have done