--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
网友回答
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。