S: Excuse me. Can you tell me what an exercise is, please?
L: Well, it's sort of like a series of questions numbered one, two, three, four, for example. And one might be a definition. Another might be a calculation. Or you might have to describe information on a table. Little short answers, a number of little short answers.
S: So it's a bit like what you do in an exam.
L: Yes, often an exam is very much like an exercise.
S: OK. Thanks.
L: Thank you.