Collocation of relative words in preposition + attributive clause The schools themselves admit that not all children will be successful in the jobs ________ they are being trained. Why use for which?

Collocation of relative words in preposition + attributive clause The schools themselves admit that not all children will be successful in the jobs ________ they are being trained. Why use for which?

Children will be successful in the jobs________ The man to whom you spoke is my friend