The book was written in 1946, _____ the education system has witnessed great changes.
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A
when
B
during which
C
since when
D
since then
推荐题目
The house_________was destroyed has now been repaired.
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A
the roof of it
B
whose roof
C
its roof
D
the roof of that
In many countries, government reports, legal papers and most business letters are the main situations _______ English is used.
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A
that
B
when
C
which
D
where
Mr. Smith has been to many famous cities in China, _______ Chengdu has impressed him most.
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A
in which
B
on which
C
of which
D
with which
They went on well at first but eventually everything they worried about happened.
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A
which
B
what
C
that
D
when