Have you cleaned the blackboard of the laboratory,peter?--Yes,i__it after the first class.
题目
Have you cleaned the blackboard of the laboratory,peter?--Yes,i__it after the first class.
a.have done b.did c.will do 为什么不是a?.
答案
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点