Table -tennis is another way of s____ ping-pong ball.

题目

Table -tennis is another way of s____ ping-pong ball.
答案是saying,请问理由?

答案

saying
乒乓球的另一种说法是Table -tennis .
介词短语做定语修饰way.介词后只能跟名词或者动词ing形式.
比如:the way of speaking.讲话的方式.