All the guests at the party were dancing and singing happily _____ the electricity was cut off.
#30392
A
until
B
while
C
when
D
because
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-----How long do you think it will be _____man can finally solve the problem of cancer?------Well．it depends．
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when
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until
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after
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________ she couldn't understand was ________ fewer and fewer students showed interest in her lessons.
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A
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______ seemed surprising to us was ______ he came out first in the speaking competition.
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It; that
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What; what
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but
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or
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and
D
so
—You look tired, Jack． What's wrong with you?—Oh, 1 worked quite late last night． Nothing wrong with me, ．
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A
although
B
though
C
yet
D
still