问题描述： He is in Class 3,Grade 1的意思 1个回答 分类：英语 2014-10-22 问题解答： 我来补答 are you in class five,grade seven?yes,i am.no,i am not.are they in class eleven?yes,they are.no,they aren't.is he twelve years old?yes,he is.no,he isn't. 展开全文阅读
