I think it important to keep healthy 与I think it is important to keep healthy 区别
问题描述：
I think it important to keep healthy 与I think it is important to keep healthy 区别
答
完整的句子应该是 i think that it is important to keep healthy
that代指后面的宾语从句，可以省略。
所以句子I think it is important to keep healthy是正确的，另一个错误。
答
I think it important to keep healthy 是简单句 it 作形式宾语，宾语是to keep healthy
I think it is important to keep healthy 是复合句 宾语从句 中it 作形式主语
答
第一句是简单句，第二句是主从句。意思一样。
答
I think it important to keep healthy 是简单句 it 作宾语
I think it is important to keep healthy 是复合句 宾语从句 it 作形式主语
答
前一句没有从句,后一句有从句.
前一句中it是形式宾语,代指to keep healthy,important是宾补.
后一句中,it is...healthy是think的宾语从句,由that引导（已省略）,it是从句中的形式主语,代指to keep healthy,is important是从句中的表语.