I'd like to buy the same coal ________ you wear now.

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Who is the woman ________ talked with you just now?

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Last week, we visited a factory ________ produces fanning tools.

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People from the countryside were ________ the cities.

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－Mary, ________ yourself to some fish? －Oh, no. I'm full.

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Light travels ________ lines unless it is reflected (折射) .

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May I ________ your attention to the problem?

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I can not ________ the two things in my mind.

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Two dogs ________ a bone, and a third runs away with it.

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It is wise for China to take in an ________ technology from some developed countries.

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