It was difficult to tell exactly _______

问题选择题

It was difficult to tell exactly _______ the saying began, but it is possible that it was in the theatre or movie industry.

A．where

B．when

C．why

D．that

答案

答案：A

题目分析：考查宾语从句：句意：很难辨别这种说法是在什么地方开始的，但是可能是在剧院或电影行业。Tell后面接的是宾语从句，根据句意和in the theatre or movie industry.可知是询问地点，选A。