It is bad for you to smoke is bad for 是谓语吗 It is diffcult for me to do it is diffcult 是谓语吗

问题描述:

It is bad for you to smoke is bad for 是谓语吗 It is diffcult for me to do it is diffcult 是谓语吗

是表语 这个句子还原就是to smoke is bad for you 原句的it是形式主语 主系表
第二局同理