问题描述： he lived in china when he was born 为什么不用since 1个回答 分类：英语 2014-11-29 问题解答： 我来补答 he lived in china when he was born 因为都是过去式.注意下面的区别:: He has been living in china since he was born 他从出生,一直住在中国. 展开全文阅读
