I left out three sentences on the use of "enrol"

1) I signed up for/I enrolled in the drama course.
I enrolled a technical high school in 1998.
2) I joined the Scouts in 1998.
I enrolled in the faculty (at university??) of Medicine
3) I enrolled my child in a guitar course.

1) I signed up for/I enrolled in the drama course. <~~OK

I enrolled in classes at a technical high school in 1998.

2) I joined Boy Scouts in 1998. I enrolled in pre-med courses at UCLA.

3) OK

To understand the use of "enrol," let's break down each sentence.

1) "I signed up for/I enrolled in the drama course."
In this sentence, the word "enrol" is used to express the action of registering or joining a drama course. To enroll in a course, you typically need to fill out an application or registration form provided by the educational institution offering the course. You may also need to pay any necessary fees to secure your spot.

2) "I joined the Scouts in 1998. I enrolled in the faculty (at university??) of Medicine."
Here, "enrol" is used in two different contexts. In the first sentence, it means becoming a member or actively participating in the Scouts organization. In the second sentence, "enrol" is likely used to indicate that the person has registered or been admitted to the faculty of Medicine at a university. This typically involves a formal application process, submission of required documents, and meeting the eligibility criteria set by the university.

3) "I enrolled my child in a guitar course."
In this sentence, "enrol" is used to describe the action of registering or enlisting someone (in this case, the child) in a guitar course. This could involve contacting the course provider, filling out an application form, and paying any required fees to secure the child's spot in the course.

In summary, "enrol" is commonly used to signify the action of joining, registering, or enlisting in various educational, recreational, or organizational activities. The specific process of enrolling may vary depending on the context, but generally involves filling out forms, meeting criteria, and sometimes paying fees.