There is no wonder 和 It's no wonder 的区别

问题描述:

There is no wonder 和 It's no wonder 的区别
Zhang Yining has trained continuously for 6 hours,__ she is tired out.
A.There is no wonder B.There is no need C.It's no wonder D.It's no need
这道题我选的是A,可是答案是C,请问There is no wonder 和 It's no wonder有什么区别?

一般情况下 ,没有There is no wonder 这种形式的
只有It's no wonder .固定用法“...是不足为奇的”