We’ll never forget this terrible accidentand the damage_______has caused to the area.

This is the TV station ____ we visited last year

19I made a bad impression ________ the teacher ________ arriving late on my first day

Children under fifteen are not permitted to see such kind of film _________ is bad fortheir mental development.

It seems to some experts that 56．com, youku．com and tudou．com _____ 90% of the video market in this area．