-----Can I watch TV, Mom? -----No, you         . You          to do your homework first.
#76494
A
don’t; have
B
can’t; can’t
C
can’t; have
D
do; must
推荐题目
-- _______I take some photos in the hall?   --Sorry, you_______.
#74605
A
Must… can’t
B
Can… can
C
Can…can’t
D
May… needn’t[
—I’m sorry. I ________ at you the other day.— Forget it. I was a bit out of control myself. 
#63421
A
shouldn’t shout
B
shouldn’t have shouted
C
mustn’t shout
D
mustn’t haven’t shouted
Doctor Wang      at seven o’clock for the conference, but she didn’t turn up. 
#62827
A
should have arrived
B
should arrive
C
should be arrived
D
should be arriving