---I hear Tina_____to appear in the advertisement. Is that true?---Oh, yes. She is busy preparing for it these days.
He found _________ to sleep.
— Dad, I'm going for Jim's birthday party. —.
Doing eye exercises makes his eyes .
—May I have a cat at home, Dad? —Yes, you can. But you must know how to it.
Which has a different sound from the other three?