【题目】The square _____ by many volunteers every weekend when I was a small boy and now I’m one of the volunteers cleaning the square.
A. cleaned B. was cleaned
C. is cleaned D. cleans
在线课程【答案】B
【解析】
根据主语和谓语动词关系来确定语态
考查时态和语态。句意：当我还是个小男孩的时候，每个周末都有很多志愿者来打扫这个广场，现在我也成为了志愿者中一员。主语和谓语是被动关系，when I was a small boy提示是过去时。故选B。