is finished是什么时态

　　Her power over me is finished

　　她再也不能控制我了。

　　Made from cast iron, it is finished in graphite enamel.

　　它是用铸铁制成，最后在外面搪了一层石墨。

　　The dining room is finished in deep red

　　餐厅装饰成了深红色。

　　Now that the highway is finished, the shopping centre should thrive/ flourish/ prosper.

　　既然这条公路已经竣工，那个商业中心一定会兴隆起来。

　　He will not lay it down until it is finished.

　　他没干完的事决不会放下不干。