me students, professional training might be the way to go since well-developed skills, _______ , can be the difference between having a job and not.

下列修辞手法的辨析错误的一项是（ ）

It took him a long time to ______the skills he neededto become a professional artist

The charity sale our school organizes every year has taught us much _______ we would never have learned it in class

He admitted in the examination—- That’s why he was not admitted universities or colleges