he took__as to what he shoudld do.1 an advice of his friend 2his friend's advice为什么1不行.
问题描述：
he took__as to what he shoudld do.1 an advice of his friend 2his friend's advice
为什么1不行.
答
advice是不可数名词，所以不能用an来修饰
答
advice不可数名词
答
advice是不可数名词,所以不能用不定冠词来修饰