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
推荐题目
I’m sorry not to have replied to your letter earlier, ______, I must say , I apologize.
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which
B
for which
C
to which
D
whom
The worsening of global warming, _____human activities are to blame, has led to frequently extreme weather.
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by which
B
for which
C
that
D
what
Whenever I met her, ______ was fairly often, she greeted me with a sweet smile.
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who
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which
C
when
D
that
They can find whatever they need in the supermarket, ______ is always busy on Sundays.
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which
B
when
C
where
D
who
I have a big dream — I want to go into space, _______ will take some time to realize, I guess.
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which
B
it
C
what
D
where