改成否定句 My mother is an Engelish teacher. My mother ___ ____English teacher.

My mother is a doctor.（改成否定句） My mother is young.改成否定句是什么? this is my mother 怎么改成否定句 改成否定句 My mother is an Engelish teacher. My mother ___ ____English teacher. My mother is a teacher 改为否定句是什么? My mother is a good cook.同义句同义句改成：My mother ____ ____. there is a computer in my bedroom.改成否定句 This is my mother 变为否定句 It is my pencil.改成否定句 this is my eraser.改成否定句 this is my ruler改成否定句 That is my aunt.改成否定句 They sell some vegetables to my mother 改成否定句 The USA is a______(发达）country.将After calling a few more times my mother has to come upstairs改成否定句 I think MY Father and MY Mother is a good movie 改为否定句 That is a UFO.改成否定句 This is a pagoda.改成否定句 there is a book 改成否定句