—How long have you been in this office?—Just a few minutes. My cousins__________ here together with me.
#104311
A
have walked
B
had walked
C
walked
D
have been walking
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 As soon as he comes back, I’ll tell him when _______ and see him.
#104132
A
you will come
B
will you come
C
you come
D
do you come
Tom, you play the violin so well. But I ______ you can play the violin.
#99235
A
didn’t know
B
don’t know
C
hadn’t known
D
haven’t known