he failed in the exam,was expected
问题描述:
he failed in the exam,was expected
为什么只能用AS 不用which
答
he failed in the exam 做主句,后面是状语从句
在从句中,failed这件事是 被 预料到的,属被动
如果用which引导,则为定语从句
前后两种从句修饰的句子成分不同