who was waiting,and who was he waiting for?这句语法对吗?

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who was waiting,and who was he waiting for?这句语法对吗?
感觉不太对,又找不到合理的解释.请英语高人解读!

who was waiting,and who was he waiting for?这句语法对吗?Answer:不正确第二个疑问代词"who"应改为"whom",因为它做是的wairing for 后面的宾语成分当然在口语中who可以做主语,又可以做宾语.(1)句子的语法结构由并...