摘要： At the beginning of class, the noise of desks could be heard outside the classroom. A. opened and closed B. to be opened and closed C. being opened and closed D. to open and close [答案]C 考查现在分词的被动语态 [点拨]分析空前的the noise of desks可知两者存在被动关系
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At the beginning of class, the noise of desks _____ could be heard outside the classroom.
A. opened and closed B. to be opened and closed
C. being opened and closed D. to open and close
查看习题详情和答案>>At the beginning of class, the noise of desks __________ could be heard outside the classroom.
A. opened and closed B. to be opened and closed
C. being opened and closed D. to open and close
查看习题详情和答案>>At the beginning of class, the noise of desks ______ could be heard outside the classroom.
A. opened and closed B. to be opened and closed
C. being opened and closed D. to open and close
查看习题详情和答案>>