问个关于定语从句的问题：如何去判断定语从句中缺少宾语

Question

最近学关于关系副词和关系代词时碰到的问题，老师说定语从句中若缺少宾语就用关系代词，不缺就用关系副词。
例如说：Yes，There is one point_____we must insist on
这题的定语从句缺少宾语，如何判断？
例如说：There was not a single person_____she could turn for help
这句缺少宾语吗，如何判断

Answer 1

把这个先行词放到定语从句中，看看做什么成分，作宾语，前面用关系代词，；作状语， 前面用关系副词
Yes，There is one point_____we must insist on 把one point放到 定语从句 we must insist on中，是 we must insist on 【one point】作宾语 因此关系代词用 which/ that
There was not a single person_____she could turn for help 把 a single person 放到定语从句she could turn for help 中，是she could turn【a single person】 for help ，还是作宾语，用关系代词 who

再举个例子
I live in the house ____ my parents bought two years ago. house做 bought的宾语，因此用关系代词which
I like the house ____ we live now. house做 live 的状语，因此用关系副词where或者 in which
I like the house ____ we live in now. house做 live in 的宾语，用关系代词which

再举个例子
I will never forget the days_____ we spent last year. days 做 spent的宾语，用which
I will remember the day _____ I joined the army. day 做I joined the army 的时间状语，用when

Answer 2

你可以看第一句，先不看前面，就单独看这个从句。we must insist on， 如果后面不跟宾语，是不能成一个句子的。而第二句she could turn for help，这个可以单独成一个句子。 所以说定语从句中若缺少宾语就用关系代词，不缺就用关系副词。