The computer system ___suddenly while he was searching for information on the Internet.

David lives on the ________ floor. It is too high, so he has to take a lift every day.

依次填入下列各句的成语，最恰当的一组是（ ） ①“一把手综合症”的最基本症状是 ，大体可以用“决策一言堂，用人一句话，花钱一支笔”来概括。②如果说精通散打的尹喜平从警卫员到领导干部有其“独到之处”，那么其 之猖狂并将散打技艺用于官场打击对手、抬高自己之上着实令人“刮目相看”。③外交部发言人秦刚23日表示，日本领导人如果 ，将使日本朝着危害亚洲、危害世界，甚至危害日本自身的危险方向越走越远。

It’s ______ to borrow money from your mother to settle your debt to your uncle. That’sjust robbing Peter to pay Paul. [ ]

Have you seen_______ boat in my living-room – Yes, it’s not_______ real one, but it’s_______ best model I’ve ever seen.