单项填空Chen Guangbiao says he ________ all his money to charities when he dies.[ ]A. leavesB. leftC. wi

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• While I _ a Zhengjian Evening Paper inthe sitting room, the doorbell rang.[ ]A.was readingB.readC.is
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• --I want to know when Mr. Brown will arrive.--When he , I will tell you. A. will arrive B. arrived C
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• While Helen __________ the guitar, her mother came in.A．was playingB．is playingC．playedD．plays-八年级英语
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• The pupils hurried to the classroom _____ the bell rang.[ ]A. until B. as soon as C. if D. so that-八
• 如图所示的四种单细胞生物在结构上既有相同之处也有不同之处，它们都能在各自的环境中独立存在．（1）A、B都属于菌类，A在细胞结构上与B最主要的区别是．（2）C属于植物，因为其细-八年级生物
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• - How will you spend your weekends?-If I ______free, I ______ to the cinema with my friends. [ ]A. w
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• 眼虫和草履虫的身体由个细胞构成，具有精致和复杂的来完成各种生理功能。（2分）-七年级生物
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