enroll in something *
enroll on something

To make up for lost time, he enrolled in night school as well.

She enrolled in a class to learn more about him.

All of the men were single and had no children when they enrolled in the study.

I enrolled my daughter in a similar course a few years ago.

He enrolled in a local community college and went to work.

They enrolled members in all 50 states and 27 countries.

She just enrolled in an English as a second language course and is looking for a job.

She enrolled in a school to become a medical secretary.

He enrolled as a student in 1850, but soon took off to work at sea.

There are around 65,000 students enrolled in public and private schools.