price可以用expensive修饰吗?

题目

price可以用expensive修饰吗?
关于price 一词,在八年级英语下册unit6,topic1,section C中有这样一句话:the price of the spring field trip is so expensive that we should raise money.其中对price 就用了expensive,

答案

不自然.应说：
the price of the spring field trip is so HIGH,
或：
the price of the spring field trip is so OUTRAGEOUS,
或：
the price of the spring field trip is so UNREAL,