找出句子中的错误：Afer 50 years,we can make a kind of car which can fly.
问题描述：
找出句子中的错误：Afer 50 years,we can make a kind of car which can fly.
答
we can make a kind of car which can fly in 50 years~~
一般after用于过去时,in用于将来时的