I’d love to go with you, but I’m busy (prepare) ______ for the coming examination.

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问题 I’d love to go with you, but I’m busy (prepare) ______ for the coming examination.

选项

答案preparing

解析 “be busy(in) doing sth．”为固定短语，意为“忙于做某事”，其中介词in 可以省略。

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大学英语三级A级

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