He thought it a great honour __to speak to us . A.asking B.to ask C.to be asked D.being asked

题目

He thought it a great honour __to speak to us . A.asking B.to ask C.to be asked D.being asked
为啥选C?

答案

be asked to do是被要求做某事
他觉得被要求和我们交谈是一种荣幸