the olympic snowboarding event ,_____, was exciting

Question

A．on which many people watched B．where many people watched TV
C．which many people watched on TV D．where many people watched on TV
选什么
为什么
是非限制性定语重句吗
where 这词怎么用

Answer 1

选C
理由 此句为非限定性定语从句，先行词是event，是物。
where引导定语从句时，必须满足如下条件：
1 定语从句中主宾表成分完整；
2 先行词是地点或与地点意义接近
eg this is the room where my father spent his childhood .
make a mark where you have problems.

供参考。追问

为什么不选a 麻烦您了

追答

A选项的最前面有个介词on，对吧？这个on是起什么作用的呢？一般情况下，介词提到关系代词之前是和后面的动词可以连用的，比如
He is a good teacher from whom we can learn a lot.
这里面有 learn from这样一个短语。但在本题中，watch on既不是短语，从语义上也说不清楚on的存在到底有什么意义，所以不能选A.

Answer 2

,_____, was exciting为定语从句，很明显，缺少主语，排除A/B/D
where在定语从句中只能作状语，在主谓宾齐全的前提下考虑。

Answer 3

C吧
where 相当于 里面带介词 比如说 I like Sweden, where people retire when they are 40.
这句里where代表的是 in Sweden