(2013·江西，28)She says that she'll have to close the shop ________ business improves.
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A
if
B
unless
C
after
D
when
推荐题目
He once worked in a company, _____ he went abroad for further study.
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A
from which
B
after that
C
after which
D
from this
As long as the laws of nature ______, there will be tornadoes.
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A
exist
B
are existing
C
will exist
D
existed
It was in Yuexiu Park _____ they dated for the first time _____ the old couple told us their story.
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A
that, that
B
where, when
C
that, when
D
where, that
After Yang Li Wei succeeded in circling the earth, _______ our astronauts desire to do is walk in space.
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A
where
B
what
C
that
D
How
It’s not necessary to explain the truth________ there are air, water and sunlight , there are living things.
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A
in wherever
B
that wherever
C
which
D
that