“它不见了”,英语应该说it is gone还是it has gone?

“它不见了”,英语应该说it is gone还是it has gone? it has gone与it was gone Maybe it has gone! it's gone,这里的it‘s是it has 还是it is? it is gone It has gone与It is gone的区别?shot与photo的区别? it was gone和it has gone区别? 问一个简单的语法it's gone 这里省略的是is 还是has 英语选择题：the milk ( )strange.It has gone bad,I think. A.is tast the money for dog food has gone还是is gone? It has gone far too far. she has gone还是she is gone还是she was gone?