I think this important for children to have a good habit.单句改错:

问题描述:

I think this important for children to have a good habit.单句改错:
this---it 为什么不是it's

this 改为 it 或者it's (都是完全正确的).如果用it,则这是一个简单句,it在句中作形式宾语;而如果this 改为 it's,则这是一个主从复合句,it's important for children to have a good habit 是宾语从句,it 在宾语从...