It's of importanceAan affair Ba matter我查了字典,两者都是"事情"的意思.那为什么A不行呢?

It's time of It's a piece of It's out of my what's it made of? It's kind of you It's a piese of It's very kind of... it's kind of you a.It’s made of It's out of U It's ( ) picture of ( ) bridge. It's the bag of Marry's. It's for sb.和It's of sb. It's of+n.是否=It's+adj it's very kind of it's是什么 It's a kind of fruit. It's also a kind of color.What is it? It's of +n 结构不懂 例如It's of the very essence of the essay It's a deal it's a steal,It's the sale of the fucking century!