Is this your bag/schoolbag ? No, it isn't. It's Lily's.
祝你学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!
Is this your schoolbag?
No, it's Lily's.
Is this your backpack? No, it is not. It is Lily's.
backpack是书包, Lily's后省略了backpack因为前提有backpack所以就不用再重复backpack在句中了。
IS THIS YOUR SCHOOL BAG?NO,TI'S LILY'S.
Is this your bag/schoolbag ? No, it isn't. It's Lily's.