He must be helping the old man to water the flowers,________?
#64494
A
is he
B
isn't he
C
must be
D
mustn't he
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--Are there any halls in your school? ---
#59801
A
Yes,there’re
B
No, there aren’t
C
Yes,they are
D
No, they aren’t
—________ hours of sports do you do every week?—Six hours.
#60274
A
How long
B
How soon
C
How much
D
How many
