.It seems to some experts that 56.com, youku.com and tudou.com _____ 90% of the video market in this area.
The captain stood by the window, _____ he could see the top of the tower.
That was the only gate _____ we could rush out and save those _____ were in great danger.
All of the flowers now raised here have developed from those _____ in the forest.
On the table she found a piece of paper _________some puzzling secret codes.
The number 9.11 is a special number, ____, I think, that will be remembered by the Americans forever.