【正确答案】 Honorable President,
I am privileged to write to you about how to improve students' physical condition in our campus. My proposals are as follows.
Firstly, since students are not getting enough workouts, I think it is essential that our school arrange adequate PE lessons in per week courses, giving us more opportunities to strengthen our body. Secondly, I propose that we should add a variety of PE courses, such as swimming, bowling, and yoga, which will stimulate mass participation in sports. Finally, I hope that our university can regularly organize a large number of extracurricular activities.
I hope the above suggestions could be taken and the health conditions of our college students could be improved considerably.
Yours sincerely,
Li Ming

【答案解析】 第一段开门见山，点出写此信的目的。第二段分条具体叙述解决的方法，没有多余的寒暄废话，用了Firstly等关键引导词，条理清晰，说理明确。最后一段表达出希望建议被采纳，并回归到“改善身体状况”的主题。整个文章语言得体、建议合理且言简意赅。