–-That must have been a long trip.
-- Yeah, it us a whole week to get there.
A. takes
B. has taken
C. took
D. was taking
网友回答
A. takes
B. has taken
(答案→)C. took
D. was taking
解析：考察固定句式和时态。固定句式：It takes sb some time to do sth做某事花掉某人一段时间。该句型中的it是形式主语，真正的主语是后面的不定式结构。根据第一句的must have been说明本句是对过去情况的虚拟，故使用一般过去时。故C正确。