A: May I go out to play football, Dad?B: No, you ________. You must finish your homework first. 
#74877
A
may not
B
needn’t
C
shouldn’t
D
mustn’t
推荐题目
-----You ______ it up during the meeting------I_______ know it was so sensitive an issue. 
#62907
A
might not have brought ;don’t
B
needn’t have brought;don’t
C
shouldn’t have taken,didn’t
D
shouldn’t have brought ,didn’t
— I think Mr. Zhang may be in his office.— No, he _____ be there. I saw him ____ there just now.
#77792
A
can’t; went
B
mustn’t; left
C
can’t ; leave
D
may not; going
— Who’s singing in the next room? — It ______ be Mary. She ______ New York. 
#75016
A
mustn’t, is in
B
must, has gone to
C
could, has been in
D
can’t, has gone to