i think （）important to tell him about it。答案是it ，为什么不是it‘s呢一般做形式主语都是ti's开头

Question

请求帮助？

Answer 1

两个答案都可以，都对，句子结构不同，分析如下：
　　I think it important to tell hime about it.是简单句，第一个it是形式宾语，为真正宾语。
　　I think it is important to tell hime about it.是主从复合句，it is important to tell hime about it.是宾语从句，从句中，第一个it是形式主语，to tell hime about it.作真正主语。

Answer 2

两种都是对的。
I think it important to tell him about it. think+it+important是think+宾语+宾语补足语的用法，it代指句中后面的to tell him about it.
I think it's important to tell him about it.这句中it's important to tell him about it是从句，即think+从句的用法

Answer 3

it是形式宾语，important是宾语的补语，to tell him about it是真正的宾语。用it is 也可以的，这样it is important to tell him about it就是宾语从句，it成为形式主语。

Answer 4

it 形式宾语 你认为的用it is 的话是一个i think （that） it is important to tell him about it 还是用形式主语 应该说语法上面也是正确的 只是有点烦而已。 一般当两个结构可以表示一个意思的时候，用简单的那个。

Answer 5

对，你说的没错，括号的前身就是it's， 我高一的时候老师解释过，具体忘记了，不过就是，填it 和it's 是一个样的，填it's就是连个句子普通拼接起来嘛，而it就是另外一个语法，忘记名称了。我知道答了等于没答