–I want to return the book to John, but I can’t find him.--He______ the library. You can find him there.
Be careful with the knife, ______ you’ll be hurt.
— ______ do you go to the gym? — Twice a week
— Where is Jenny? — She is doing her homework ______ the classroom.
Mike lost his key. ______ couldn’t enter the room.
I met Jerry in the hotel yesterday, but he didn’t tell me________.