( ) That isn't my backpack.It's____.A my brother B my brothe

( ) That isn't my backpack.It's____.A my brother B my brothe That isn't my backpack改为复数 Is ____ your backpack No,it isn't .My backpack is big.That o Is that your backpack?Yes,it's ___ backpack.A his B her C my My mother thinks that a present like that isn't s____ enough It isn't my pencilcase,but this is my backpack是什么意思? 英语复数形式It is an English dictionary.That isn't my brother.She It isn't the dog which my brother gave me. My brother 【】TV in the evening.A isn't B don't C doesn't He isn't my brother.( ) is taller. It isn't my sister or my brother,but still is the child of m 补全对话A:Is that ____ mother? B:No.it's____aunt,my father's____