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。

We were required not toanyimportant details before it was made public.

______ your English teacher ______ — She is slim and beautiful.

Sally, your skirt ________ nice. —Thanks.

_____in the ticket hall for almost an hour, I suddenly realized I had left my ID card home.[ ]