It was the third time that he____ us about his story.Atold Bhad told Chas told请确定答案者回答

选B
类似例句有：
It was the third time that he had been out of work that year.
这是他那一年第三次失业了。

是个固定句型，好长不看了，不知道对否，前面过去式的话从句就要用过去完成时；前面是一般现在时态从句用现在完成时态仅供参考，这是个固定句型阁下可以记住

It is the third time that he told us about his story.
It was the third time that he had told us about his story.
这是固定句型.it is the first/ second/ third time that sb. did sth. 这是某人第几次做这件事情了.
如果be动词是一般现在时,从句中的谓语动词用过去时.
如果be动词是过去时的话就用过去完成时.
所以选B