We go to the old people's home___their rooms once a month.A.to clean B.clean C.cleaned D.cleans
问题描述：
We go to the old people's home___their rooms once a month.A.to clean B.clean C.cleaned D.cleans
答
A.to clean
go to ...to do ...,用to+动词原形表目的.意思是去某地做某事.
整句话意思是,我们去老人们的家里打扫房间,一个月一次.