Ifanythingshouldhappen,thenearestpersonhecouldcontactby...
来源:语文精选馆 1.91W
问题详情:
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
【回答】
D
知识点:连词
题型:选择题