在定语从句中,中的引导词在什么时候可以省略?

Question

如题所述

Answer 1

除了关系副词（where/why/when)，关系代词(which/who/whose/that/whom)在先行词作定语从句中作宾语的时候可省略．
如：
This
book
(that/which)i
bought
have
been
lent
to
my
classmate.这里”书”作宾语，所以关系代词可省略．
但若前面有介词，则不可省略，如：
The
girl
with
whom
i
went
shopping
is
my
sister.(也可说:The
girl
who
i
went
shopping
with
is
my
sister.)