With an appropriate conjunctive: (1)I asked her to stay for tea,

With an appropriate conjunctive:
(1)I asked her to stay for tea,____ I had something to tell her. (2)It will be hours ____ she comes back.
【正确答案】：for; before
【题目解析】：【考点点击】本题考查连词。【要点透析】for引导原因状语从句,表示某事件发生的原因。 before在t+be+时间段+before句型中作连词,意为“在…之后才…”,本句意为:她几个小时后才能回来。