Is he a student?No,he isn't.(不能用No,he's not.) 为什么 You are 在句

Is he a student?No,he isn't.(不能用No,he's not.) 为什么 You are 在句 Is he a student?No,he isn't.(能不能用No,he's not?） He isn't a student,is he?否定回答是Yes,he is .还是 No,he isn't. 英语疑问句问题!Isn't he a student?Yes,he is.怎么理解翻译呢?那么 No,he isn't. He is a student,isn't he?He is a student,is not he?哪一个正确 Is he thin No ,he isn't . NO he isn't Is he drawing 可以回答成Not,he isn't.或 No,he is not. He is no a student.和He is not a student.求详解, these are two my brothers Is this Dave ? No,he isn’t. Is j a Is that boy Ted?A.NO ,he isn`t B.NO ,it isn`t.填那个 Isn't he a bank clerk?（ ）He is a reporter from CCTV.A.No,he