—Must I go to medical school and be a doctor like you, dad?—No, you _______,son. You’re free to make your own decision.
#74114
A
can’t
B
mustn’t
C
shouldn’t
D
needn’t
推荐题目
You'd better ____ football in the street.
#75999
A
play
B
not play
C
not to play
D
plays
—Must I finish the book today?—Yes, you ________, but you ________ finish it now. Have a rest.
#75918
A
do; don’t have to
B
do; mustn’t
C
must; don’t have to
D
must; mustn’t
It ______ be the postman at the door. It’s only six o’clock.
#63562
A
mustn’t
B
can’t
C
won’t
D
needn’t