—Howcouldyoumakesuchasillymistake?—I’msorry.I
来源:语文精选馆 2.49W
问题详情:
— How could you make such a silly mistake?
— I’m sorry.I ______ it before I handed in the paper.
A.should check B.could check
C.must have checked D.ought to have checked
【回答】
D
知识点:虚拟语气
题型:选择题