Either my parents or older brother ( )the room every Saturday.A.clean B.cleans C.is cleaning D.are cleaning

问题描述:

Either my parents or older brother ( )the room every Saturday.
A.clean B.cleans C.is cleaning D.are cleaning

B.cleans Either...or...连接的并列主语谓语动词就近原则
older brother靠近谓语动词,是单数所以谓语动词用单数,every Saturday说明是一般现在时态,所以选B.

应该是:
B
邻近原则,主语brother为单数,所以用cleans
无论我父母还是我哥哥每周六都打扫房间.