he is a student.he had been a student/ he has been a student.中文理解起来有什么不样哪句能看出现在还是不是学生呢?完成时必须后面要有年限才对么?

Maybe he is a student .He ___ ___ a student. 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.对a提问 英语翻译he is a student ____ ____. he is a( ) middle school student He is a Junior Two student是什么意思 he is a student.改为否定句 he is a lucky student改为感叹句 she is a student. ----so ( )he 改复数形式He is a student. He is a good student.He never _______late. He said.He is a good student合并 He is a student and I am a student,too He is a studentand___________I He is no a student.和He is not a student.求详解, he is good at subject .though he plays a lot.he is a t______ student. 同义转换He is no more a student.he()a student() He is a student;so ____I.He isn't a student;_______I.怎么填,急.