题目内容
____I leave now,Boss?
Sure,but you____ finish your job first
A. Must; needn't B. Can; may
C. Can; must D. May; mustn't
练习册系列答案
相关题目
题目内容
____I leave now,Boss?
Sure,but you____ finish your job first
A. Must; needn't B. Can; may
C. Can; must D. May; mustn't