代词就是可以指代其他词性的词,通常代词可以做主语、宾语、表语。代词很多种,指示代词 this that these those做主语 ,例如: That is my teacher. 人称代词的主格形式 he she it they可以做主语,例如:She is a doctor. 关系代词 what which that 也可以做主语, 比如: which is your bag? 名词性物主代词可作主语,mine, yours,hers,his,theirs , ours ,例如: your bag is blue, but mine is red. 不定代词 all, none, every 可作主语,例如: All have gone. 还有复合不定代词 someone, nobody, everything 这类的,可做主语。例如:everything is going well.
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