问题补充：
I you would come today. You me a phone call in advance.
A. don’t expect; should have given
B. didn’t expect; could have given
C. hadn’t expected; ought to give
D. didn’t expect; can have given
答案：
A. don’t expect; should have given
(答案→)B. didn’t expect; could have given
C. hadn’t expected; ought to give
D. didn’t expect; can have given
解析：考查情态动词时态。题干意思是“我没料到你今天会来。你该事先打电话来”，表示“本没料到”用过去时，后面用情态动词+完成时表示对过去的虚拟，本来可以做某事而实际上没有做。情态动词+进行时表示目前正在进行的动作或状态。
