Either you or I __ to blame for this.

According to the statistics, listening to loud music at rock concerts ______ hearing loss in some teenagers in the past 2 decades.

The university estimates that living expenses for international students________around $8,450 a year，which________a burden for some of them.                     (2013·湖南，33)

Not only his family but also he          Chaplin’s movies. 

The number of the teachers     two hundred in our school.