At the beginning of class, the raise of deskscould be heard outside the classroom.[ ]A. opened and c

题目简介

At the beginning of class, the raise of deskscould be heard outside the classroom.[ ]A. opened and c

题目详情

At the beginning of class, the raise 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:同步题

答案

C

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