问题描述: He cleaned his shoes.用when提问,然后做回答,怎样做.还有回答,怎样回答呢, 1个回答 分类:综合 2014-11-03 问题解答: 我来补答 When did he clean his shoes?He cleaned his shoes several days before.不是很确定这服不符合你的要求 展开全文阅读