改复数 单数形式
问题描述：
改复数 单数形式
复数：
This is a good doctor
I'm an English teacher
It is a Knife
He has a new watch
What's this? It's an orange
This is my dress
单数：
Those are green jeeps
They are old cars
What are those? They are erasers
Are they American Girls?
答
复数
This is a good doctor
【These are good doctors.】
I'm an English teacher
【We're English teachers.】
It is a Knife
【 They are knives.】
He has a new watch
【They have new watches.】
What's this?It's an orange
【What are these?They're oranges.】
This is my dress
【These are my dresses.】
单数：
Those are green jeeps
【That is a green jeep.】
They are old cars
【It is an old car.】
What are those?They are erasers
【What is that?It is an eraser.】
Are they American Girls?
【Is she an American girl?】