That___ during last 3 years A has happened B happened C has been happened D was happened拜托各位

That___ during last 3 years A has happened B happened C has been happened D was happened拜托各位
英语人气:513 ℃时间:2019-09-05 08:58:56
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A 应该是What has happend during last 3 years?首先,happen 不用被动语态,排除CD 再则,during last 3 years 是一段时间,要用完成时态,不是单纯的过去时间,是指在过去三年的期间所发生的事,不是时间点.过去式---时间...
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