---What do you think of teaching , Bob？ ---I find it fun and challenging. It is a job ___you are doing something serious but interesting
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A
where
B
which
C
when
D
that
推荐题目
What do you think of the reason _____ he gave at the meeting yesterday?
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why
B
for which
C
that
D
in which
—When did your brother begin to show his interest in medicine.—It was a Saturday _____ he noticed his classmate experimenting on a frog in the lab.
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A
that
B
what
C
when
D
which
During the economic crisis, we should help those for ______life is far from easy．
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A
whom
B
whose
C
who
D
whoever
The famous basketball star,_______ tried to make a comeback, attracted a lot of attention.
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A
where
B
when
C
which
D
who