I think it's an exciting film and you'll like it after you have seen这是病句么

问题描述:

I think it's an exciting film and you'll like it after you have seen这是病句么

I think it's an exciting film and you'll like it after you have seen.
答案:after 改为 if
中文:我想这是一部精彩的电影.如果你已经看过了,你一定会喜欢的.