KangKang is a student.He studies in Grade 8.
He does well in subjects.He spends most of his time on study it,but has little exercise.He often stays up late.
Last week,he had a bad ill.He went to see a doctor.The doctor told him staying up too late is bad for his health and he should go to bed ealier and do more exercise in his spare time instead of studies.
Now,KangKang understands the important of exercise.He not only studies hard,but also does exercise in his spare time.