You are allowed to go out______ you promise to be back before 11 o'clock tonight.
She understood what I was talking about,________it was the first time we had spoken together.
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.