It has been used everywhere in the world.是个什么时态?
问题描述:
It has been used everywhere in the world.是个什么时态?
答
现在完成时(主动have done,被动have been done).现在完成时有两种含义:(1)动作发生在过去,对现在造成了影响.eg:He has come.他已经来了.(对现在的影响是他在这儿.) (2)动作从过去开始,持续到现在(有可能继...