_____ for the timely investment from the public, our company would not be so booming now. [ ]

I’m so tired after the long journey that I want to go to bed at once.—You’d better ______ first and then have a rest.

依次填入下列各句横线处的成语，最恰当的一组是①这个人_______，见利忘义，前日是朋友，今日就不认你了，大家要当心。②我们做事情要有目标，不要_______，乱定计划，这样往往一事无成。③很多城市对品牌的认识还处于一种初级阶段，在品牌定位上左右摇摆、_______，迷失了方向，错失了机遇。

I was lucky to win a gold medal in the800-meter-race.— You __________ through tough training.

My father goes for a walk daily.