has been opened。
现在完成时，但一般都这么说have/has done，have/has been done，是现在完成时的被动语态。
Digital television has been around for some time now.
数字电视已经面市一段时间了。
A new advance has been made in the control of malaria.
在控制疟疾方面已取得新的进展。
A new computer system has been installed at a cost of 80 000.
新的计算机系统已安装，费用为8万英镑。
