. To the surprise of many people, in ten years the city’s population ____ by 12%.

_______ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.

I used to quarrel a lot with my parents, but now we _______ fine.

I can’t leave. She told me that I ______ stay here until she comes back. 

. Do you think it ______ great reward for London to hold _____ Olympic Games in 2012?