两句很简单的英文句子,只问一下有没有语病?

题目

两句很简单的英文句子,只问一下有没有语病?
He is a good student who is friendly and helpful.
He still help other students who thinks his studies are diffcuclt for him.
有没有语病?该怎么改?

答案

第一句没有错误.用的定语从句用对了第二句是想说他仍然帮助那些学起来很困难的学生吗?那就是这样的：He still helps other students who think their studies are difficult for themselves.注意谓语动词的单复数形...