At the beginning of class, the noise of desks _______ could be heard outside the classroom.[ ]A. ope

题目简介

At the beginning of class, the noise of desks _______ could be heard outside the classroom.[ ]A. ope

题目详情

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
题型:单选题难度:中档来源:江苏专项题

答案

C

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