—Why are you so depressed? —I my MP4 player on the bus.A. had lostB. am lostC. have lostD

网友回答

A. had lost
B. am lost
(答案→)C. have lost
D. was lost
解析：考察时态。根据题意，你为什么这么沮丧？——我在公交车上丢了我的MP4。可知下文叙述的事情到现在为止已经发生，故用现在完成时态。选C。