thank you 后面加什么介詞

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

　　“謝謝你，醫生，”護士傻笑著說。

　　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!

　　我自己會說，謝謝了！