I was walking and reading in a P.E. class during my second-to-last period of the school day, when I saw a girl walking alone with her head in a book as well.请分析这个when引导的是定语从句还是状语从句?
1) Lily walked in the forest with great caution for fear that she might be attacked by a giant snake. 2)Lily walked very carefully in the forest in case a giant snake might attack her.请问句1)和2)中,主句是过去时态,might be attacked 表示虚拟语气和might have been atta...