--- Peter, do you know who my dictionary ?
---Sorry , I don’t know . I didn’t do it .
A. has taken away
B. was taking away
C. had taken away
D. is taking away
网友回答
(答案→)A. has taken away
B. was taking away
C. had taken away
D. is taking away
解析：句意：--皮特，你知道谁把我的字典拿走了吗？--对不起，我不知道，我没有拿。这里拿走发生在过去，强调对现在造成的影响，不知在什么地方，故用现在完成时。