The new means of transport ________ in this city, so whether it will work out remains to be seenA.have never triedB.has never triedC.have never been triedD.has never been tried
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D解析词义辨析.tried,try的过去时态,意思是尝试/努力.tired形容词意思是累的,疲劳的,根据题意,这个城市中从来没有尝试过新的运输方法,因此它是否这能否实现还有待观察.这里新的运输方式是try的逻辑宾语,故用被动语态,选D