The train __we are traveling was late. A. which B. where C. on which D.in that

问题描述:

The train __we are traveling was late. A. which B. where C. on which D.in that
where 可以吗?

答案是C
不能选用where,因为where做从句部分的地点状语.这里的on which做从句部分的方法状语.