Is this your wallet?
这是你的钱包吗?
Yes, it is.
是
No, it's not.
不是
Where is your wallet?
你钱包在哪?
It's in my pocket.
它在我口袋里
Is this your umbrella?
No, it's not.
Are these your keys?
Yes, they are. Thanks!
Where are your sunglesses?
They're on the table.
No, they're not. They're my sunglesses!
You're right. My sunglasses are in my purse.
Where are my glasses?
Are these your glasses?
No, they're not.
Wait! Are they in your pocket?
Yes, they are. Thanks!
Is this my pen?
No, it's not. It's my pen.
Sorry. Where is my pen?
It's on your desk.
Oh, you're right! It's on my desk.