单选题
12.
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
【正确答案】
B
【答案解析】
it is high time sb did sth是固定结构。根据句意分析，背叛是过去已多次发生的动作，因此要用过去完成时。
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