根据句意用适当的词填空

Today English is becoming more and more useful and many people begin to teach ________ English．

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Look!The students on the playground are playing games．They are ________ themselves．

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I don't think the movies is worth ________．

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A lot of doctors and nurses lost their ________ during the war against“SARS”．We should learn from them．

用适当的介词填空

Mother often takes me ________ music concerts on Sundays．

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They went to the zoo instead ________ going to the park．

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As parents, they should try their best to help the children ________ trouble．

用适当的介词填空

He changed ________ a bad boy ________ an honor student．

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Did you pay ________ the black coat then?

用适当的介词填空

Are you interested ________ swimming or skating?