I know it is necessary for you to learn another language句子成份分析一下,
问题描述:
I know it is necessary for you to learn another language句子成份分析一下,
答
I 是主语,know是谓语,后面是一个省略that的宾语从句,it是宾语从句里的形式主语,to learn another language是宾语从句里真正的主语,is 是宾语从句里的系动词,necessary是宾语从句里的表语.