You can take any seat _______ is free.
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A
which
B
where
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in which
D
that
推荐题目
American students take part in a wide variety of after-school activities _______ they develop their social skills.
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where
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which
C
that
D
what
The project is based on an agreement, one of _____ purposes is to ensure that the project can be completed before the deadline.
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whose
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which
C
its
D
what
The Internet is a very useful invention for us, ______ we can do lots of things at home.
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with which
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with it
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for which
D
for it
He wrote a long letter ___he explained what had happened in the accident.
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what
B
which
C
where
D
how