【答案解析】Dear Prof. Johnson, I am writing to explain my absence from classes since April 21, 2007. On April 20, 2007, I was involved in a serious motor vehicle accident. I was transported to the hospital in an ambulance, where I was treated for a broken ankle, fractured collarbone, and 3 bruised ribs. My doctor advised complete bed rest for 6 weeks, and as a result, I have been unable to attend classes. I am concerned about keeping up with my studies, and have been doing the required readings as assigned by my professors. My biggest concern is whether I will be eligible to take the final exams in June. Would you please advise me regarding my courses and exams, specifically if there will be any special consideration given to me in light of my current situation? Thank you for your kind assistance. I look forward to hearing from you soon. Sincerely, Li Ming