We must keep our room clean. Dirt and disease go , you know.
More than one teacher _____ thought highly of the boy.
In any eme rgency, you should always remain _____.
The number of people who can afford to buy their own houses ________ more than 80%, but a number of houses _________.
After dinner George gave Mr. Lee ________ride to________ Beijing Capital International Airport.
I don’t think the risk they took ______ the poisonous snake is worthwhile.