问题 更新时间2023/6/13 12:48:00 Jean did not have time to go to the concert last night because she was busy ___ for herexamination.A. to prepare B. to be preparedC. preparing D. being prepared 答案 登录 注册 C 出自：国家开放大学 >> 国家开放大学开放英语
问题 更新时间2023/6/13 12:48:00
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