Must we find out the reason today? - No, you _____.
#70710
A
mustn’t
B
don’t have
C
don’t have to
D
needn’t to
推荐题目
You used to be quiet, ________ you? 
#69471
A
used
B
did
C
didn’t
D
aren’t
I ______ go to bed ______ my father came back.
#70468
A
won’t, until
B
didn’t, until
C
will, until
D
/, when
English is very useful ,____it?
#68527
A
doesn’t
B
isn’t
C
can’t
D
won’t
Tom used to be late, __?
#69277
A
didn’t he
B
isn’t he
C
did he
D
use not be
He’s never been to a foreign country, ________?
#70189
A
isn’t he
B
is he
C
has he
D
hasn’t he