今日打卡金句：【Day4】
What's this?
It's an air-conditioner.
Is this yours?
Yes, it's mine.
Where are my glasses?
Do you know where I've put my glasses?
Over there.
On the desk.
Is this your pen? I found it under the desk.
No. Mine is blue.
Which is your bag?
The bigger one.
The one on your right.
Are these books all yours?
Some of them are mine.
