(2014届天津市蓟县第二中学高三第一次模拟考试 ) --- It’s five years since I was a singer. --- Not really! ?
In September 2008,China’s key milestone in space travel _____when Zhai Zhigang conducted the first space walk.
We _____ last night,but we went to appreciate the flowerbeds and streetlights in Tian’anmen Square instead.
Each of us, ____old or young,is a valuable member of society.
If a computer crashes,you will lose the file you _____ on unless you save it regularly.
There you can see beautiful tall buildings on _____side of the square.