enroll in something *
enroll on something

In 1909 the first women were enrolled on the Law course.

We've had about two million kids now enrolled on it.

The first class of seven men and women enrolled on September 1, 1935.

Students already enrolled on a course can apply at any time.

Of the 38,911 students enrolled on the main campus, only 1,204 are black, according to university officials.

By fall 1988, more than 8,300 students were enrolled on campus.

As of September 2009, there were over 150 students enrolled on this course.

A record 50,054 students were enrolled on the census day.

In many places you can enroll on the spot and may be able to start the same day.

By 1995, states will have to enroll one of every five people on welfare in such a program.