A housing bubble is an economic situation _____ occurs when house prices rise much too fast.
(2013·北京卷) Hurry up! Mark and Carl us.
(2013·北京卷) --- So what is the procedure? --- All the applicants before a final decision is made by the authority.
During the last three decades, the number of people participating in physical fitness programs___ sharply.
If we _________ now to protect the environment, we’ll live to regret it.
When I first met Bryan I didn’t like him, but I ________ my mind.