英语急救,

题目

英语急救,
she was disappointed to know the holiday she had been looking forward to ( )Acanceled Bcanceling C was canceled Dbeing canceled 我知道是非谓语,
ABD为什么不选啊，分析原因，

答案

这个句子是从句套从句,结构复杂,所以先来分析一下.she was disappointed to know（主句） the holiday she had been looking forward to was canceled（know的宾语从句）the holiday was canceled（宾语从句的主体）...