An investigation was made into the accident，（）50 people were killed

Question

如题，括号处为什么能用 in which 而不用 where?

Answer 1

虽然in which =where 但是 引导非限制性定于从句 ,没用用where引导的吧,用where就不能用逗号隔开,表示地点状语.这里明显隔开了 就用in whcih 。

in which和where的区别：

在一定程度上,in which = where.当它们修饰的先行词是表地点状语时,这时in which = where。

如：This is the house in which I lived two years ago.  =This is the house where I lived two years ago.   这是我两年前住的房子。

如果关系代词在定语从句中原为介词的宾语，可以把介词提到从句前，
这时关系代词只能用which，不能用where。

例如:The house where I live is beautibul.如果把in放在house后面，就只能用which，不能用where。The house in which I live is beautibul。

Answer 2

虽然in which =where 但是 引导非限制性定于从句 ， 没用用where引导的吧， 用where就不能用逗号隔开，表示地点状语。 这里明显隔开了 就用in whcih .本回答被提问者采纳

Answer 3

where 是指地点，in which 里的which 是代事故，50人是在事故中死亡应该说50 people were killed in the accident，所以用in which