—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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Mary, remember to bring the CD I want next time, _______?
#64960
A
does she
B
doesn’t she
C
will you
D
won’t you
——Would you mind if I keep the door open? ——____________.
#64969
A
Yes, do it  
B
No, of course not
C
Yes, go ahead
D
No, you can’t open it
I don't think it's a good idea, ___ ?
#65321
A
is it
B
isn’t it
C
do I
D
don't I