给下列句子排序。

（_______）Of course. Here you are.

（_______）They look pretty. I'll take them.

（_______）Can I help you?

（_______）Can I try them on?

（_______）Yes, those pants are nice.

4 5 1 3 2

Of course. Here you are意为当然，给你，They look pretty. I'll take them意为它们看起来很漂亮，我买了，Can I help you意为我能帮你吗，Can I try them on意为我能试穿一下吗，Yes, those pants are nice意为是的，那些裤子很漂亮，由句意可知，此为一个关于去商店买帽子的对话，故答案为45132。