单选题 It's no use ______ any longer. He may come by any bus.
A. waiting B. to wait
C. having waited D. to have waited

【正确答案】 A

【答案解析】本题考查固定句型“It’s/There is no use doing…”，即：做…是没用的。故选A，意思是：再等下去也没用，他可能乘坐任何一辆公交过来。