Oh, what's this?

哦，这是什么？

A present for you.It's in the box.

一份给你的礼物。它在盒子里。

It's on your desk.

它在你的书桌上面。

It's behind the door.

它在门后面。

It's under your chair.

它在你的椅子下面。

It's in your bedroom.

它在你的卧室里。

Happy birthday to you!

祝你生日快乐！

Wow! Ha ha...

哇！哈哈……