— Can I go to the movie, Mum?— Certainly. But you _______ be back by ten o’clock.
#76644
A
can
B
may
C
might
D
must
推荐题目
-- Who do you think _____ such a foolish thing?-- It _____ Tom, but I’m not sure.
#62680
A
could have done; may have been
B
could have done; must have been
C
should have done; may be
D
must have done; might have been
 I told Sally how to get here, but perhaps I ______for her.
#62233
A
had to write it out
B
must have written it out
C
should have written it out
D
ought to write it out