定语从句省略问题His speech was really a success,encouraging all the students who were present at the meeting to make up their minds to study hard.这个句子中who were能不能省略（present是出席的意思,短语：be present at出席
网友回答
可以省略,可直接用present at the meeting 作定语来修饰students .
======以下答案可供参考======
供参考答案1:
who were present一起省，用at引导后置定语
供参考答案2:
可以省略，可改成.....students presenting at the meeting......present也可作动词，动词ing形式可做后置定语，修饰students.