问题

He ________ be more than thirty—— he looks so young, just like a teenager!
A:can’t
B:mustn’t
C:shouldn’t
D:may not
B:mustn’t
C:shouldn’t
D:may not
正确答案是:
同类题型
Did you go to Jack’s birthday party—No, I____.
Look! Someone _____the classroom.-Well, it wasn’t me, I didn’t do it.
The audience ______ to see who would win the goldmedal.
Will you go to the exhibition tomorrow?—Yes, I will go ________ it’s rainy.[ ]
Rose was wild with joy________ theresult of the examination.