单项选择题
I would have told him about the change of time for the class, （） to class last time.
A．did he come B．he came C．had he come D．he had come
单项选择题 It is very（） of you to arrange an early meeting between your boss and our team.
单项选择题 He failed to live up to （） had been expected of him.
单项选择题 She always buys （） my birthday.
