---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
Tom would rather _________than _________. 
#77217
A
stay at home , go out
B
to stay at home , to go out
C
to stay at home , go out
D
stay at home , to go out
—I didn't go to see the doctor yesterday.—But you ________.
#62489
A
ought
B
ought to
C
ought to be
D
ought to have