most of her schoolmates said hello to her,__this never happened before A unless B so

问题描述:

most of her schoolmates said hello to her,__this never happened before A unless B so
C because D even though

D even though 他们学校的很多人都向她打招呼,即使这种状况从来没发生过那so呢因此这种状况从来没发生过这样不行吗前半句不是“许多人向她打招呼的”原因用even though ,表示出人意料