关系代词:
(先行词是人):who/whom/whose+n./that
(先行词是物):which/that/whose+n.
关系副词:
when/where/why/prep.+which(物)/prep.+whom(人)
关系连词:
that
定语从句中关系代词无自身含义,代替先行词,其含义及单复数由先行词决定且定语从句中关系代词无what有that。
(先行词是人):who/whom/whose+n./that
(先行词是物):which/that/whose+n.
when/where/why/prep.+which(物)/prep.+whom(人)
that
定语从句中关系代词无自身含义,代替先行词,其含义及单复数由先行词决定且定语从句中关系代词无what有that。