Which of the underlined(划线) part has a different pronunciation(发音)

I want to visit Mr. Lee. Could you tell me his ______—Of course. He is my neighbor. Just follow me.

Let me take care of your little dog while you are away,?

Jordan kept his illness from his opponents before thefinal game ________ they might know about it.

Can I help you —I’d like to buy a present for my father’s birthday, _______ at a proper price but of great use.