playing football sound interesting是sound 还是sounds?

问题描述:

playing football sound interesting
是sound 还是sounds?

sounds
playing football是动名词短语作主语,是单数,所以sound应该加s。

sounds

sounds ( 因为主语是:playing football,相当于it做主语,所以用三单,又如:Learning English takes time.学习英语花费时间,是一个道理)