It is such a modern machine ______ few of the workers know how to operate.
#71962
A
as
B
which
C
that
D
the one
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_____ suddenly occurred to me _____ I had to attend an important meeting in Shanghai the next day.
#67895
A
It; which
B
What; that
C
What; which
D
It; that
Some pre-school children go to a day care center, __________ they learn simple games and songs.
#74456
A
then
B
there
C
while
D
where
10. We went through a period _____ communications were very difficult in the rural areas.
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A
which
B
whose
C
in which
D
with which
We are now living in a high-tech age ____ easy things are becoming complicated．
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A
when
B
that
C
where
D
why