Now an increasing number of middle school students go abroad for further study at their ow

问题补充：

Now an increasing number of middle school students go abroad for further study at their own , trying hard to realize their dreams.

A. price

B. cost

C. expenses

D. pay

答案：

A. price

B. cost

(答案→)C. expenses

D. pay

解析：

这题考查词组：at one’s own expenses“自费”，句意是：现在越来越多的中学生自费出国学习，努力实现梦想。选C。