这句英语说的对不对

题目

这句英语说的对不对
My father has not too much money.He wants to know the cost of study in South Korea.If the cost is too high,my father can't affort it.

答案

嗯 第一句用has not 应该可以 但是说成doesn't have 更加保险 第二句the cost of study 应改为 the cost of studying of 是介词所以得跟动词ing