7.（2011北京卷,27）——That must have been a long trip.

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7.（2011北京卷,27）——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
解析：考查动词的时态.句意为“——那一定是长途旅行.——是的,我们花了整整一周时间才赶到那儿.”题干中must have
done是对过去的肯定推测,提示时间在过去,描述过去的情况,排除A和B,D项was
taking进行时态表将来,但事实上事情已发生,这与题意不符,因此选C.
我很纠结为什么不是has taken 现在完成时的用法之一是表示过去发生或已经完成的某一动作对现在造成的影响或结果.所以我花了很多时间到那造成了那人猜测旅行一定花了很多时间这不是影响么?

根据时态是可以排除ab的,B是现在完成的,而在句意是发生在过去的时间.
一般过去时有动作发生的时间点,即过去某一时间发生某一动作；现在完成时则没有,即不强调是哪个时间点发生的动作,而强调过去的动作对现在造成的影响和结果.
在他猜测时,已经去那里了,这是发生在过去的时间点的,且对现在是没有造成影响的

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