找出画线部分读音与其他三个不同的选项。
---Have you returned the book to the library ____? ---Yes, I have ____ returned it.
He is very ________today. Look, he is laughing _________.
We would like you ________ and we look forward _________ you.
There is a new bridge ________ the river in front of my house.
-- Sorry, I can’t speak Chinese. -- ________. I’ll teach you