单选题 The people around him kept saying ______ the drowned man but he went on doing artificial respiration.
【正确答案】 D
【答案解析】it is no use doing sth. 做某事没用,只是白费力气。句意:他身旁的人们不停地说道要想救活这个溺水的人简直是白费力气,但是他仍继续给他做人工呼吸。