问题详情：
Watching basketball games on TV at home is one thing, going to watch them ________ (perform) live is quite another.
【回答】
being performed 句意：在家里的电视上看篮球比赛是一回事，去看现场比赛又是另外一回事。根据句意可知，“perform”与“them”之间为动宾关系，由live “现场地”可知表动作正在进行，应用现在分词的被动式being performed，作宾语them的补足语。
知识点：非谓语动词
题型：单词拼写
