— When did Tom e to Qingdao？
— It was in July，2006 and he a trip in China with his parents at that
time.
A. would take
B. had taken
C. was taking
D. had been taking
网友回答
A. would take
B. had taken
(答案→)C. was taking
D. had been taking
解析：考查动词的时态。根据句子，指的是过去时间，且at that time是进行时态的时间状语，所以表过去那个时候正在发生的事，要用过去进行时态。选C。
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