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I am quite healthy because I keep on ________(take)exercise every day．

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He hurt his leg while playing football ________ the rain．

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This morning, I saw her heading ________ the supermarket．

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Have you paid ________ your new house?

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Mom, don’t worry ________ my study．I can manage it．

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An apple a day keeps the doctor ________．

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If you don’t want to catch a cold, you’d better go out with your coat ________．

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I haven’t eaten my favorite cookies for a long time because I am ________ diet．

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I need to take part in a very important examination so I have to be ________ work for two days．

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This afternoon, I’m going to pick ________ one of my old friends at station．