A survey of the opinions of experts ____

问题选择题

A survey of the opinions of experts ________ that three hours of outdoor exercise a week ________ good for one’s health.

A．show; are

B．shows; is

C．show; is

D．shows; are

答案

答案：B

考查主谓一致。A survey of the opinions of experts中中心词是survey调查，抽象名词，不可数，故谓语动词用单数。下文，主语是three hours of outdoor exercise，中心词是outdoor exercise，抽象名词，不可数，故谓语动词用单数。选B。