While playing ping-pong, our eyes see the ball coming, judge its speed and then hit it back ________ it should go.
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A
when
B
why
C
what
D
where
推荐题目
_______ I met him, he was working as a secretary in a big company.
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A
For the first time
B
The first time
C
The first time when
D
When the first time
There is hardly an environment on earth _____ some species of animals or other have not adapted successfully.
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A
in which
B
on which
C
to which
D
for which
In my opinion, life in the twenty-first century is much easier than ___________.
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A
that used to be
B
it is used to
C
it was used to
D
it used to be
Nissan's plants in Zhengzhou and Guangzhou, ________ operate in cooperation with Dongfeng Motor Corp., remained closed.
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A
which
B
who
C
that
D
whose
Later in this chapter cases will be introduced to readers __ consumer complaints have resulted in changes in the law.
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A
where
B
when
C
who
D
which