it's gone,这里的it‘s是it has 还是it is?

it's gone,这里的it‘s是it has 还是it is? 问一个简单的语法it's gone 这里省略的是is 还是has it's nothing to do with me .其中的it's,是it is还是it has?这俩有区别么? "It is said that he has gone to Australia"里的it's said是什么意思 It`s been a pleasure to talk to you.中 It`s 是It has 还是It is? It's 20 years since.It's 是is 还是has She said it's good for you.中的it's是it is 还是it was, it is not的缩写是it isn`t还是it`s not? where's it gone是什么的缩写? what's gone is gone.It's no use talking about it any more. “它不见了”,英语应该说it is gone还是it has gone? 请教在英语里it's的非缩写形式是it is 和另一个是 it has对吗?