That is a fat boy(否定句,原意不变)

This is a fat boy. 怎么改为否定句 按要求改写句子1.it is a thin book （否定句,不变原意2.that is my pencil case (改为否定句,但原意不变)The desk is smooth. That is a Japanese boy.(改为否定句) Is danny this fat boy否定回答 怎样改为否定句,原意不变 He is a boy 改为否定句 He is a boy改否定句 my father has a pen .改为否定句 that is a big apple 改为否定句,句意不变 How fast the boy is running!(保持原意基本不变） What a ______ _______ The boy is too fat.I think that is__for him.A.a question B.a Tom is a fat boy,____he?