— Hi Michelle I can’t find my e-dictionary.— Sorry I it. I guess I put it on the top shel

问题补充：

— Hi，Michelle， I can’t find my e-dictionary.

— Sorry，I it. I guess I put it on the top shelf with my things.

A. had used

B. used

C. was using

D. am using

答案：

A. had used

(答案→)B. used

C. was using

D. am using

解析：考查时态：句意：Michelle，我找不到我的电子词典了。对不起，我用了。我猜我把它和我的东西一起放在书架顶端了。根据句意，我是过去用的，现在已不用了。所以用一般过去时。选B。