语法词汇练习 语法大全 语法详解 英语听力 
_______December 11,2001, China formally became the 143rd member of the WTO
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in
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On
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At
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Until
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He will come here _______5:00 _________6:00 this afternoon.
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among; and
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between; and
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from; to
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among; or
Mike often exercises      half an hour in the morning.
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at
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of
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with
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for
That’s very kind _________you _________me.
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of; help
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of; to help
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to; to help
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for; helping
We can learn a lot            Chinese history from this book.
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about
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for
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of
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from
The CD-ROM is designed           Nancy Jackson.
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of
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for
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to
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by