—Did your parents go to the movie yesterday evening?
— No, We stayed at home watching TV.
A. both
B. all
C. either
D. none
网友回答
A. both
(答案→)B. all
C. either
D. none
解析：考查不定代词。both 两个都; all三个及以上都;either两个任何一个都;none一个都没与;句意:昨天上午,你的父母去看电影了吗?_不,我们都在家看电视.结合语境可知指的是三个以上都,故选B.