速求.
问题描述：
速求.
_______the classroom,the students went to the playground to watch the football match.A To clean B Having cleaned C Cleaned D Cleaning
我选的是B...但是感觉好像时态有点问题
答
B可是went是过去式 啊- -用排除法吧 没有had cleaned 放在开头的用法好吧总觉得有点不对劲