It was能缩写为It's吗?但Hao was your vacation?It's boring.却缩写了?

It was能缩写为It's吗?但Hao was your vacation?It's boring.却缩写了? It was 可缩写为It's it was可以缩写为 it's吗? It was 可不可以缩写成 It's 请问：He/She/It was能缩写成He's/She's/It's吗? 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? It is和It was是否都可以缩写为It`s 请问It was 和 It has 可以缩写成It's吗? it was 可以缩写吗 How' was your vacation?It's ___(relax)