↑ 收起筛选 ↑
试题详情

The problem is too difficult for him. He _______ solve it by himself without any help.

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

九年级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