Mario used to help Mum do housework.(help Mum do housework是对画线部分提_英语解答

Mario used to help Mum do housework.(help Mum do housework是对画线部分提问） What______Mario______
to ________?

人气：143 ℃　时间：2019-08-19 17:31:58

解答

did use do
used to do(拓展一下)