--Mike’s bike didn’t work yesterday so he didn’t go there with his deskmate.He mine.

问题补充：

--Mike’s bike didn’t work yesterday, so he didn’t go there with his deskmate.

--He mine. I wasn’t using it then.

A. need have used

B. must have used

C. could have used

D. can have used

答案：

A. need have used

B. must have used

(答案→)C. could have used

D. can have used

解析：本题考查虚拟，could have used本可以用我的。