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It is very kind _____ you to help me with my lessons because it is very difficult _____me to learn them well.
#50539
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of； for
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of； of
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for；of
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for； for
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His mother is friendly____ us.
#48964
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of
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 Do you know the answer _______ this question?
#47479
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China lies _____ the east of Asia and _____ the north of Australia.
#49974
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to；to
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----When is your father going to Hong Kong?---- He is going there         the morning of November 10th.
#50011
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The 30th London Olympic Games will begin _______ 27th July 2012.
#49118
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in
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