第1个回答 2019-02-12
主语从句:主要对主语起修饰作用e.g.Whether the plan is feasible remains to be proved.
宾语从句:主要是修饰宾语的e.g.Tell your mother whether you will come home on Friday.
同谓语从句:对句中名词做解释说明e.g.They are investigating the question whether the man is right.
表语从句:做表语的句子e.g.The point is whether we should go there.