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His father ________ (听) to the radio at that time.

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Please ________ (屏住呼吸) when you jump into the water.

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Betty was very ________ (上气不接下气) rushing into the classroom because she was late.

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I saw ________ (各种各样的) animals in Beijing Zoo.

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The workers have cut ________ (几十棵树).

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There are ________ (两打橘子) in the basket.

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I, ________ (和我的父母一起) will visit Macao next summer.

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He came to China ________ (在他18岁时).

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They were ________ (两个最重要的) questions.

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Beijing is ________ (中国的首都).