作业帮He is a student,isn't he?He is a student,is not he?哪一个正确
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He is a student,isn't he?He is a student,is not he?哪一个正确
He is a student,isn't he?He is a student,is not he?哪一个正确
He is a student,isn't he?He is a student,is not he?哪一个正确
第一个是最正规的