3．(2011重庆高考)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
解析：句意：老汽车站是否应该被一个现代 化的宾馆代替仍然在讨论之中。由or not可知此处应用连接词whether，whether...or not意为“是否”。
答案：A
4．(2011江西高考)The villagers have already known ______ we’ll do is to rebuild the bridge.
A．this B．that
C．what D．which
