She looked at the professor and wondered where she_______ him.

There are many people downstairs. What do you think _____?

What a mess(杂乱)! Tony, you should ___________ your things to keep the room clean.—OK, Mum! I’ll do it at once.

The payphone is fifty meter away _____ here. [ ]

The little daughter has _____ for a long time. Her mother is trying waking her up now.