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

 Not only his parents but also his English teacher___ proud of him .

 —Is this your family?—Yes, it is. These are my parents and those　_____　my brothers. 

The only means to achieve success ___ to appeal to arms.

The number of foreign students attending Chinese universities ________ rising steadily since1990.