It seems to some experts that there are only three commonly-used vedio websites in this area: 56.com, Youku.com, Tudou.com and they_______ 90% of the market.
The young man had made so much noise that he______not have been allowed to attend the concert.
There happened to be nobody under the wall when it fell down, ____ ?
Do you know __________ that made it possible for them to continue their project?
All the class except Eddie, who is ill,__ ________there.
The railway bridge ____ by 2012 will provide a faster route to transport goods.