题目

I appreciated () the opportunity to study abroad two years aog.
A .having been given B.having been
C.to have been given D.having been robbed
主要求解释.

提问时间：2020-12-12

答案

appreciate doing
机会是被给的,所以用动名词的被动形式
另外,机会是已经被给的,所以用动名词的被动形式的完成时
having been given