2019年10月22日
English Grammar in Use - Part1 Present and past
摘要： Unit 1 Present continuous (I am doing) A) Am/is/are + -ing is the Present continuous. B) I am doing something = I'm in the middle of doing it; I've st 阅读全文
posted @ 2019-10-22 21:50 ElonJiang 阅读(197) 评论(0) 推荐(0)