Rose was wild with joy ---the result of the examination.
问题描述：
Rose was wild with joy ---the result of the examination.
A.to
B.at
C.by
D.as
答案上为什么是B？
答
at 有一意为因为,由于；作为对……的反应
此题中joy是对于考试结果的反应,所以用at符合搭配.
例如：I was uneasy at her silence.我因她沉默而不安.
There was general diappointment at the false report.对这失实的报道大家感到失望.
其他词相对于这句话所表达的意思并不适用.