The library's study room is full of students for the exam. A. busily preparedB. busy prep

发布时间：2020-08-16 12:27:04


The library's study room is full of students      for the exam.
A. busily prepared
B. busy preparing　
C. busyly prepare 　
D. are busily preparing

网友回答

A. busily prepared
(答案→)B. busy preparing　
C. busyly prepare 　
D. are busily preparing
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