______ their studies in China, they’ve travelled to some cities and talked with the local people.

Some people won’t realize the importance of theirhealth _____they have lost it.

Would you please keep silent The weather report ________ and I want to listen.

The White House is a beautiful building_____a lot of trees and a big garden.You can invite your friends __________ it.

She ________ for five years and she has a son now.