单复数句型转换

单复数句型转换

题目
单复数句型转换
It is a bag.
Is that an eraser?
What's this in English?
He isn't my friend.
Are these their photos?
He has a round face.
Do the boys have apples?
She has a knife.
答案
They are bags.Are those erasers?What are these in English?They aren't our friends.Is this his / her photo?They have round faces.Does the boy have an apple?They have (some )knives .
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