When deeply absorbed in work, ______ he often was, he would forget all about eating or sleeping.
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that
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which
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where
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when
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October 1,1949 is the day_________ the People’s Republic of China was founded.
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where
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that
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which
D
when
The reason _____ he refused to attend the meeting was that they didn't give him an invitation earlier.
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how
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why
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which
D
that
Bob is in a hopeless situation, ________ we should keep a close eye on.
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which
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where
C
that
D
when
In 2004, he went to Oxford University __________ he became interested in Chinese culture.
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which
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that
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whose
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where