---Dad, must we wait until the light becomes green?---Yes,I’m afraid we      .That’s the traffic rule.
#74656
A
can
B
may
C
have to
D
need
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