thank you 後面加什麼介詞

"Thank you doctor," said the nurse with a simper.

“謝謝你，醫生，”護士傻笑着説。

I'm perfectly capable of doing it myself, thank you.

謝謝，我完全有能力自己做。

I'm quite capable of speaking for myself, thank you!

我自己會説，謝謝了！