Atthebeginningofclass,thenoiseofdesks
來源:國語幫 2.15W
問題詳情:
At the beginning of class, the noise of desks ____ could be heard outside the classroom.A. opened and closed B. to be opened and closedC. being opened and closed D. to open and close
【回答】
C知識點:非謂語動詞
題型:選擇題