afer ___he can speak french quite well讲一下为什么其他的不行
问题描述：
afer ___he can speak french quite well讲一下为什么其他的不行
a five years learn b five years'study c five-year study d five-years learn
答
正确：b
a. 改为：five years' learning/a five-year learning
c. five-year前面丢了a
d. five-year作为复合形容词使用,year只能使用单数形式.