关于what it is和what is it的用法

关于what it is和what is it的用法 what is it和 what it is的区别 关于what is it that和how it is that 关于date的用法What date is it today?和What'the date today?有什么区别?So 关于what it is that的疑问 what is it 和what is this的区别是什么? what is it?和what it is?有什么区别 what is it…和what it is…区别 what It is 和 what is It 一样吗 what is it 和 what it is 有何区别 what it is?和 what is it?有什么区别? What nice weather it is today!nice weather的用法.