题目内容：

The accident has reached a point __ the police have to be called in
The accident has reached a point __the police have to be called in
A.when B.that C.which D.where
说详细点、、

优质解答

D 别的放进来都不合适,而且where用法也有特殊的地方,可以有另几个单词不能有的意思和作用,所以D肯定没错.（有几个单词后边固定都用where,比如这个point,其实我想这么说,但是不确定对不对）.