—I wonder why Susan looks worried today. —I’m not sure, but she _____a small accident driving here.
#62614
A
could have
B
might have
C
might have had
D
must have had
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--- Don't worry. I've just sent an ambulance to you. They ________ be there any second.
#63010
A
could
B
might
C
would
D
should
—Tom graduated from college at a very young age.—Oh,he__________have been a very smart boy then.
#62996
A
could
B
should
C
might
D
must