It is still under discussion __________the old bus station should be replaced with a modern hotel or not.
A.Whether
B.when
C.which
D.where
A
题目分析:考查主语从句。本题的it是形式主语,whether引导的是真正的主语从句,且whether与or not连用;句意:这个旧的公交车站始发要被现代的宾馆所取代还在讨论中。在名词性从句中与or not连用的是whether.
点评:考查主语从句,在名词性从句中与or not连用的是whether.