Before you pay a visit to a place of interest, look in your local library _a book about it.
Food safety is ______ important, so the government spares no efforts to prevent food pollution.
—May I try the jacket on? —______,but I think it will be too small for you.
She thinks she can get there on time, _______she?
The headmaster thought _______ necessary to invite Professor Brown to give us a lecture.
How pleased the emperor was ___ what the cheats had said.