With an appropriate conjunctive: (1)They had camped once before,

With an appropriate conjunctive:
(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