Jack’s parents can’t go to the parents’ meeting because they ________ to Beijing on business.
#53026
A
went
B
have gone
C
will go
D
had gone
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Don’t forget   ____ the pen   ____ him.
#60410
A
to return, to
B
to return, for
C
returning, to
D
returning, for
How long have you    this school?
#53095
A
been in
B
gone to
C
been to
D
been work