26．Nowadays people have to pass various tests for professional__________ so that they can be qualified for a well-paid job.

One of the most popular 3D films— Avatar Ⅱ________ in 2014.

He can______to get us some tickets; I always trust him.

How many workers are there in the factory– There are .

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。