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 It is only when the disease has progressed to the AIDS ____ a person begins to look sick.
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which
B
what
C
who
D
that
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It was Jackie Chan ____ made me interested in Chinese kung fu.
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who
B
which
C
whom
D
what
Personally, I think it’s your attitude, rather than your score, ______ matters in your study.
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which
B
that
C
how
D
what
It was about 600 years ago __________ the first clock was made.
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that
B
until
C
before
D
when
I have always been honest and straight forward, and it doesn’t matter ____that I’m talking to.
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A
who is it
B
who it is
C
it is who
D
it is whom
 It was only after he had read the papers    Mr. Gross realized the task Before him was extremely difficult to complete.
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A
when
B
that
C
which
D
What