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。

36. ______ has helped to save the drowninggirl is worth praising.

230 The little boy likes plane models verymuch He wants to be a _______and fly a plane into the sky when he grows up

It was almost eight years Iater _____ the young mangot his doctor’s degree and became an engineer.

t manage this Sunday. Anothertime, but not Sunday.—Why _____ me earlier I’ve been lookingforward to it.