—I didn't take notes in class yesterday because i had lost my pen .---You ___mine,i __it.A.must have borrowed; wasn't usingB.may have borrowed; didn't useC.should have borrowed; hadn't usedD.could have borrow ; wasn't using为什么选D

问题描述:

—I didn't take notes in class yesterday because i had lost my pen .---You ___mine,i __it.
A.must have borrowed; wasn't using
B.may have borrowed; didn't use
C.should have borrowed; hadn't used
D.could have borrow ; wasn't using为什么选D

c
你可以借我的笔而未借,我没有用它发生在说之前,故用完成时。

D.
你本可以借我的用嘛,反正我当时也没在用它.could have done本来可以...但却没做