题目类型：
填空题
题目内容
With an appropriate conjunctive:
(1)They had camped once before,____ they knew what to take. (2)You'll miss the train ____ you hurry up.
(1)They had camped once before,____ they knew what to take. (2)You'll miss the train ____ you hurry up.
正确答案
so; unless
题目解析
【考点点击】本题考查连词。【要点透析】表示因果关系用so; unless是从属连词,引导条件状语从句,含否定意义,相当于 if not