—The spacecraft has never been to the moon, ________ ? —Certainly.
#64559
A
has it
B
hasn’t it
C
doesn’t it
D
isn’t it
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Are those your pen friends?    Yes,              .
#60136
A
they are
B
they’re
C
they are not
D
they
---Lily, how long __________ the Football Club? ---Since two months ago.
#60272
A
you have joined
B
have you joined
C
you have been in
D
have you been in
---_______ are these apples ? ---Ten yuan . 
#60291
A
What number
B
How much
C
How many
D
What color