There were a lot of friends of mine ____ (present) at my birthday party.

问题描述:

There were a lot of friends of mine ____ (present) at my birthday party.
适当形式填空 请详解

可以填present,因为它本身就可做形容词,表示出席的,到场的,但必须放在被修饰名词的后边,也就是做后置定语