问题描述: Jim visited his grandparents last Sunday (改为一般疑问句) 1个回答 分类:英语 2014-11-11 问题解答: 我来补答 visited体现一般过去时,故借助助动词did.Did Jim visit hsi grandparents last Sunday? (did已经体现一般过去时,故visited必须还原为原形visit) 展开全文阅读