This CD-ROM can help you learn and have fun ______.
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A
at times
B
on time
C
at the same time
D
in time
推荐题目
It's silly_______ you_______ other's homework.
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A
of; copy
B
for; copy
C
of; to copy
D
for; to copy
The policeman is helping the old woman __________ a heavy bag on her back.
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A
in
B
with
C
at
D
on
Computers are used workers helping make many dinfferent things now.
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A
to, for
B
by, for
C
by, to
D
for, to