We often help the old man() ? A.to do some cleaning B.cleaned C.cleans D.cleaning

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/23 19:13:44

We often help the old man() ? A.to do some cleaning B.cleaned C.cleans D.cleaning

help sb (to) do sth
A符合,BCD都不是动词原形不符合题意.
应选A

A help sb to do sth