They must have finished the work by the end of last month, ______? 
#64447
A
hadn’t they
B
mustn’t they
C
haven’t they
D
didn’t they
推荐题目
—________ hours of sports do you do every week?—Six hours.
#60274
A
How long
B
How soon
C
How much
D
How many
—_____ do you go to the school library?        —Once a week.
#59908
A
How often
B
How soon
C
How long
D
How much
-----Have you got any carrots?   ----No, I _______.
#60151
A
have
B
haven’t
C
don’t
D
am not