— That must have been a long trip.— Yeah it us a whole week to get there.A. takesB. had

问题补充：

— That must have been a long trip.

— Yeah, it us a whole week to get there.

A. takes

B. had taken

C. took

D. was taking

答案：

A. takes

B. had taken

(答案→)C. took

D. was taking

解析：考查时态。根据题中用must have done可知知道是对过去事情的推测，故用一般过去时。句意：——那一定是个很长的旅行。——嗯，花了我们一个周到达那儿。故C正确。