所谓主语补足语,就是用来补充和说明主语的,可以是一个句子,或分词短语或不定式.
eg:the man （who was driving） was drunk.这里面是用定语从句做的主语补足语.
the man( smoking there) is my uncle.现在分词
所谓主语补足语,就是用来补充和说明主语的,可以是一个句子,或分词短语或不定式.
eg:the man （who was driving） was drunk.这里面是用定语从句做的主语补足语.
the man( smoking there) is my uncle.现在分词