l am a student变否定句、疑问句并肯定否定回答

l am a student变否定句、疑问句并肯定否定回答 l am a boy 变否定句l am a boy 怎样变成否定句? l am a clever girl 怎样变否定句 英文 我是一个好学生.I am a good student.变否定句 变一般疑问句 Are you a student 变否定句 l know the student 否定句怎么变 I am a doctor 变否定句 I am a student 改为一般疑问句和否定句 I am a Grade Seven student.（改为否定句） I am a primary school student .改否定句 l am from China.(变否定句） 肯定句变否定句1.I like apples2.I buy a pen.3.I am a student.4.you are my friend.5.He is my brother. she was a student变否定句 sam cou't see and hear.(否定句) I am a student.改为否定形式 把l am a student改为一般疑问句并作肯定和否定回答 I am a student at Walker School（改为否定句）I________ ________ a student at walker school I am a (student) 变复数 She is always a good student.变否定句,并译