问题补充:
What has not yet been announced is the English contest will be held. I guess it may be held in the hall.
A. where
B. that
C. when
D. how
答案:
(答案→)A. where
B. that
C. when
D. how
解析:考查表语从句。本句中的where the English contest will be held是一个表语从句,在句中和is连用构成系表结构;句意:没有被宣布的事情是英语竞赛在什么地方被举行。根据句意说明A正确。