Many happy returns of the day!

祝你生日快樂!

May I wish you many happy returns of the day.

謹(jǐn)祝您生日快樂!

Here is a present for you.

這是給您的禮物。

I’d like to present this book to you.

我想把這本書送給你。

I bought an album for you.

我給你買了一本影集。

I don’t know how to thank you for your gift.

你送我禮物，真不知道該怎么謝你。

It’s very kind of you.

您真好!