有关英语语法的问题

Question

有关英语语法的问题麻烦英语大神分析下 这三句话的句子成分

Answer 1

1, There 引导词
主语 occasions
谓语 are （系动词）
on which one must yield 定语从句
one 主语，must yield 谓语，on which 状语。which 关系代词，代替occasions 作介词on的宾语。追答

2, Beijing 主语
is 谓语
the place 表语
in which I was born 定语从句
I 主语
was born 谓语
in which 状语， which 关系代词，代替the place 作介词in 的宾语。

3, this 主语
is 谓语
the reason 表语
for which he refused our offer 定语从句
he 主语
refused 谓语
our offer 宾语
for which 原因状语。
which 关系代词，代替the reason 在定从中作介词for的宾语。

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Answer 2

which引导的是名词性的从句，所以做状语不能像when, where一样，要跟介词