His brother has dinner at home.(改为否定句) His brother_______ _______dinner at home.还有It is Tim is new book.(改为否定句)It ________ ________Tim is new book.
问题描述：
His brother has dinner at home.(改为否定句) His brother_______ _______dinner at home.
还有It is Tim is new book.(改为否定句)
It ________ ________Tim is new book.
答
（1）His brother doesn't have dinner at home.（因为是一般过去式，所以要用doesn't。而又因为出现了doesn't，所以后面的has要用原形。）
（2）It is not Tim is new book.（因为有两条横线，所以可以将isn't分解为is not。）
答
His brother doesn't have dinner at home.
答
（1）His brother doesn't have dinner at home.（因为是一般过去式,所以要用doesn't.而又因为出现了doesn't,所以后面的has要用原形.）
（2）It is not Tim is new book.（因为有两条横线,所以可以将isn't分解为is not.）
答
is not