问题
选择题
I hear they’ve promoted Tom, but he didn’t mention _____ when we talked on the phone.
A．to promote
B．having been promoted
C．having promoted
D．to be promoted
答案
B
本题考查非谓语动词的用法。mention to do sth. 提到将要做某事 mention doing sth. 提到已经做过某事，本题应用完成被动式，D项应改为 mention to have been done 。