↑ 收起筛选 ↑
试题详情

If anything should happen, the nearest person he could contact by radio , _____ there was a ship nearby, would be on an island 885 miles away.

A. until       B. when        C. once         D. unless

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