which可以引导什么从句？可以引导宾语从句和表语从句吗？

Question

如题所述

Answer 1

which可以引导定语从句、修饰表示事物的先行词。在定语从句中充当主语、宾语或者表语。
例如：
He
was
reading
a
book,
which
was
about
war.
他正在读一本关于战争的书。关系代词which在修饰book的定语从句中充当主语。
He
was
reading
a
book,
which
he
had
bought
from
London.
他正在读一本书，
这本书是从伦敦买回来的。关系代词which在修饰book的定语从句中充当宾语。
which引导非限定性定语从句时有一个特殊用法、即它所引导的非限定性定语从句修饰主句中更多的部分甚至整个主句、这时被定语从句所修饰的“先行词”要作广义理解、which仍在定语从句中作主语、宾语或表语。
例如：
He
set
free
the
birds
happily，which
was
a
celebration
for
his
success.
他开心地把鸟放了，这是对他成功的一种庆祝。
which也可引导名词性从句（宾语/定语/表语/同位语从句）。
表语从句：My
question
is
which
student
is
the
best
at
English.我的问题是哪个学生最擅长英语。
宾语从句：I
don't
know
which
bike
belongs
to
my
father.
主语从句：which
boy
she
likes
best
is
still
a
mystery.
同位语从句：I
have
no
idea
which
picture
is
the
most
beautiful
of
all.