----_____he dropped out of school? ----His family has run into financial difficulties.
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Why was it that
B
Why was that
C
Why was that it
D
Why was it
推荐题目
—Was it by cutting down staff ________ she saved the firm?—No，it was by improving work efficiency. (2012·上海，37)
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when
B
what
C
how
D
that
It was after he went to college __ he realized the importance of forming a reading habit.
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that
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when
C
since
D
as
It was about 600 years ago _______ the first clock with a face and an hour hand was made.
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that
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until
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before
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when