题目

—What do you think made Mary so upset? —________ her new bicycle. A．Lose                                 B．Lost C．Losing                               D．Being lost 答案：解析：句意：“你认为是什么让玛丽那么沮丧？”“她的新自行车丢了。”答语为省略句，补全为Losing her new bicycle made Mary so upset.故用动名词作主语。 答案：C

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