专四
单选题That was not the first time he __ us. I think it's high time we __ strong actions against him.
A．betrayed… take
B．had betrayed… took
C．has betrayed… took
D．has betrayed… take
参考答案：B进入在线模考
【译文】那不是他第一次背叛我们。我认为我们该对他采取强硬措施了。
时态用法和虚拟语气。当句子里有序数词first/second／third…、副词0nly或最高级best／worst／most的时候。后面的定语从句要用完成时态，如：It is one of the most interesting books I’ve ever read．(这是我看过的最有趣的书之一。) 因为句子是过去时，这里应该用过去完成时。另外，it’s(high)time后的谓语要用过去时表示虚拟语气，因此B是正确答案。
时态用法和虚拟语气。当句子里有序数词first/second／third…、副词0nly或最高级best／worst／most的时候。后面的定语从句要用完成时态，如：It is one of the most interesting books I’ve ever read．(这是我看过的最有趣的书之一。) 因为句子是过去时，这里应该用过去完成时。另外，it’s(high)time后的谓语要用过去时表示虚拟语气，因此B是正确答案。
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