↑ 收起筛选 ↑
试题详情

—Where is Bob? I cannot find him anywhere.

—He________have been off long. I heard him make a call just now.

A.shouldn't      B.can’t         C.mustn’t       D.needn’t

高三英语单项填空中等难度题

少年,再来一题如何?
试题答案
试题解析
相关试题