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Hi, David.
你好 大卫
Is this your pen?
这是你的钢笔吗
No, it isn't.
不 不是
Whose book is that?
那是谁的书
It's David's.
这是大卫的
David, is this your book?
大卫 这是你的书吗
No, it isn't.
不 不是
Whose cassettes are these?
这些是谁的磁带
Sorry, I don't know.
抱歉 我不知道
Take out your pens and books, please.
请把你的钢笔和书拿出来
Oh, no!
哦 不
