Question

求一道英语题的正确答案（定语从句）

The railway tunnel ,though ______the train goes,will be completed soon.
A which B that C it D whom
各位，帮帮忙啦~

Answer 1

如果原句没错的话，那that和which都行。
这里that代表的意思并既指人有指物，所以楼主不能错误理解，它只是1个先行词。
若原句属于同位语从句，关系代词常用that,而不用which但本题并不属于同位语从句范畴。
所以，若只能选择1个答案，那么本题的题目也许是出错了。

Answer 2

应该选A which引导非限定性定语从句，在从句中做宾语
the train goes the railway tunnel which will be completed soon.
that不能引导非限定性定语从句