It was 是否可以简写为It's?

It was 是否可以简写为It's? It is和It was是否都可以缩写为It`s it was可以缩写为 it's吗? It was 可缩写为It's was it something i didn't say这个句子什么意思,是否可以理解为定语从句was it (tha it was可以缩写成it's吗 it was 可以缩写成it's吗? It was可以缩写成It's么? 请问It was 和 It has 可以缩写成It's吗? It was能缩写为It's吗?但Hao was your vacation?It's boring.却缩写了? It was 可不可以缩写成 It's she was可以简写成she's吗?