I’m trying to find yesterday’s newspaperHave you seen it?—I’m afraid that I ________ it awayI thought you had finished reading it

The parents were shocked by______news that their sonneeded______operation on his knee.

The old tower must be saved, _______the cost.

Did the policeman let you in?—No, ________ I told him who I was[ ]

依次填入下列各句横线处的成语，最恰当的一组是①李小明在这次学校举行的＂诚信＂讲演海选比赛中，台风稳重， ，成功进入复赛。②莫言讲起他在高密东北乡的故事， ，使很多文学青年也非常向往。③实干兴邦，空谈误国。没有调查就没有发言权， ，很令人讨厌。