依次填入下列各句横线处的成语，最恰当的一组是( )①党员干部应该始终牢记为人民服务的宗旨，恪尽职守，________，勤勉工作，当好履职尽责的表率，向人民交上一份满意的答卷。②为了顺利完成博士论文答辩，小李一个月来________，争分夺秒，查阅了大量的文献资料，最终，他的答辩赢得了教授们的一致好评。③唐太宗李世民尽心国事，________，励精图治，重视吸取隋朝灭亡的教训，减少赋税，发展生产，于是有了被史家称道的“贞观之治”。

He was caught by police for his drunk driving and his friend advised him to ________.[ ]

It’s his own ______ that he failed in yesterday’s interview.

What do you and your cousin ______—I______ a baseball and my cousin ______two volleyballs.

Yesterday Li Ming went to the village ________ he visited five years ago.