_________ I come back before five o’clock–No, you________. But you can’t be back later than seven o’clock.

I must return the camera to Cindy. I______it for two weeks.

Ann will be sent abroad very soon. —-She never _________ there being such a chance.

It’s impolite __________others. Always wait politely.

依次填入下面一段文字横线处的语句，衔接最恰当的一组是瓦尔登湖“波平如镜”，________，____________，或许，一只燕子飞掠在水面上，低得碰到了水。________，____________，____________。①或许，还会有一只鸭子在整理它自己的羽毛②其时，只有一些掠水虫，隔开了同等的距离，分散在全部的湖面③有时，全部的圆弧展露了，银色的圆弧④在远处，有一条鱼在空中画出了一个大约三四英尺的圆弧来⑤它跃起是一道闪光，降落入水，又一道闪光