This is his key改一般问句

This is his key改一般问句 this is his key 改为一般疑问句 his backpack 改一般疑问句It's his backpack 改一般疑问句His telephone number is 535-2375 改一般疑问句This is my grandmother 改否定句 This is a key改为一般疑问句? This is my key.改为一般疑问句! His brother is a worker .改一般问句并做肯定回答 This girl is Mary.这句改成一般凝问句要怎么改? this book is his是答句求问句 That is his key...否定句That is his key...否定句：还有一般疑问句：回答： is this your key?改句子is this your key?改否定句,肯定句,肯否定回答,把肯定句变为复数句,把复数句变为一般疑问句肯否定回答 That is his parents That is his sister This is my brother These are my friend 以上改一般疑问句 Cindy Green is fine的问句和This is a white key.的问句( ) ( )Cindy Green?( ) ( )this? This is his pencil sharpener 改为一般疑问句和否定句怎么改? 英语改一般疑问句,并做肯定、否定回答.This is a flower.I have a notebook.He is wearing shorts.We like to play basketball.Apple above the oranges.She sweep the floor.Donny water the plants every day.This is his key.悬赏50分,好的追 1、Is this your mother?（改为肯定句）2、Is Mary your sister?（改为否定句）3、this,his,is,daughter?（连词成句）4、Those are my cousins.（改为一般问句）5、This is my sister.（改为复数）6、Those are books.（改 Ann is his daughter.改一般疑问句 Dale is his friend 改一般疑问句 My science teacher is thin,一般问句怎样改?