--Hi, Tracy, you look tired. --I am tired. I________ the living-room all day.
The discussion ________ alive when an interesting topic was brought in.
Lily, help me put up the picture on the wall, ?
Is this the factory ___ you visited last year?
What’s the _________ of having a public open space where you can’t eat, drink or even simply hang out for a while?
Tom searched carefully in the room _____ he might discover exactly what he needed.