Mary is a teacher改为否定句,一般疑问句, Mary isn't a teacher Is Mary a teacher? 再问： 894843338这是我QQ 你加我吧 我到QQ上问你 再答： 我不用QQ的 再问： They are teacher. 改为否定句 并做肯定回答. It is a pen.改为否定句,并作肯定回答.改为一般疑问句,并作否定回答 I an from England.同上 Miss Liu is a teacher.同上 She is Sally.同上 Kangkang is from China.同上 My friend is from Canada.同上 We are from China.同上 Mary is a teacher.同上 He is from Brazil.同上 麻烦了
