I am a teacher 变为否定句

I am a teacher 变为否定句 I am a teacher 如何变为否定句 如何把 I am a teacher改否定句 i am your teacher 改为否定句 I am a teacher 变为一般疑问句 Im a doctor,I am tall变为否定句那个Im是I am的缩写 I am a teacher的否定形式 英语 I am a teacher 改为否定句 一般疑问句 肯定和否定的回答 将I am from China变为否定句 I am studying English,too.（变为否定句） I am a teacher.怎么改否定句和一般疑问句?如题 I am a teacher 改为否定句 一般疑问句 简短回答 His teacher has a red car.（变为否定句） I have a ball.变为否定句 I am an English teacher改为否定句 问:I'm a teacher如何变为否定和疑问句. I am a pupil.否定句 I am a girl 改成否定句