The computer, help we human beings have stepped into the information age, should be regarded as one of the most important inventions in the 20th century.
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A
which
B
whose
C
with its
D
with whose
推荐题目
There are many websites，________you can find almost all the necessary information.
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A
where
B
from where
C
when
D
from when
Peter told us the work would be finished by next month, ________ personally I doubt very much.
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A
which
B
when
C
that
D
it
Have you ever dreamed of staging a concert, thousands of people are applauding and appreciating your music?
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A
at which
B
when
C
for which
D
which