—Look! A book is on the floor. Whose is it?—It ______be Rick's. It has his name on it.
#76529
A
mustn't
B
can't
C
must
D
need
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I ______ tell you with certainty that he won’t be able to finish it before the deadline.
#63667
A
will
B
must
C
can
D
may
—— We expected you yesterday.—— I'm sorry, I______you to say that I couldn't be here until today.
#63196
A
should have called
B
must have called
C
could call
D
would call
--Why didn’t you come to Simon’s party last night?---I wanted to, but my mom simply _________ not let me out so late at night.
#62943
A
could
B
might
C
would
D
should
You drink wine before driving, or the police will take your license away.
#77356
A
don’t have to
B
needn’t
C
mustn’t
D
may not