单选题
No one can possibly recall any detail about the meeting. It is at least five years since it ______.
A、
had taken place
B、
was taken place
C、
took place
D、
was taking place
【正确答案】
C
【答案解析】
[解析] 本句为“It is... time since+从句”句型，从句中谓语动词用过去时，故选C。例如：It is many years since World War Ⅱ was over. (自从第二次世界大战结束以来已经很多年了。)
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