ThecastlemarkedthenorthernendofIreland’soldestroad,from...

问题详情：

The castle marked the northern end of Ireland’s oldest road, from ______ the Celts (凯尔特人) crossed to and from Scotland.

       A. which                    B. where                   C. that                     D. what

【回答】

B

知识点：复合句

题型：选择题