My uncle was a bus driver some years ago, but now he has a desk job.  My uncle 

Cách làm:

1. Đặt câu hỏi: What did my uncle do some years ago?
2. Trả lời: My uncle was a bus driver some years ago, but now he has a desk job.

Hoặc

1. Đặt câu hỏi: What profession did my uncle used to have?
2. Trả lời: My uncle used to be a bus driver, but now he has a desk job.

changed his occupation from bus driver to desk job.

has transitioned from driving buses to working in an office.

has a different job now compared to before.

is no longer working as a bus driver.