—Paul has lost her iphone 5.    —No, it ___be in her bag. I _______ hear it.
#74105
A
can; can
B
must; may
C
should; may
D
must; can
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There is a “ No smoking “ sign here. You _________ smoke.
#77266
A
can
B
may
C
needn’t
D
mustn’t
He ______ it on schedule, but somehow he fell behind.
#62908
A
must have done
B
might finish
C
could have finished
D
could finish