He set up in business as an insurance broker.
Hard graft is the only way to succeed in business.
I admire him for his success in business.
I associated with him in business.
Her father set her up in business.
They are highly successful in business.
He got a good start in business.
He have a master's degree in business science.
He is inexperienced in business.
The Usages and Translations of Preposition “In” in Business English