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
D
when
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After the flooding, people were suffering in that area, _____ urgently needed clean water, medicine and shelter to survive.
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who
B
where
C
which
D
that
Jane, _______I’ve shared just about everything since the first day of kindergarten, spent the weekend with me last month.
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who
B
for whom
C
with whom
D
that
Our special thanks go to thousands of volunteers, without ________tireless work, none of this would be possible．
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whose
B
which
C
whom
D
that