2. Thank you. May I open it? 　　
谢谢。我可以拆开吗？

3. Oh, a watch/xxxx! Is it really for me?
喔，一只表/xxxx！真的是给我的吗？

4. This is just what I want to have.
这正是我想要的。

5. It's so nice of you.
你真好。