问答题 Write a note of about 50-60 words based on the following situation:
You have just received a phone call from your mother at the hospital. She is ill and you must get there right away. Write a note to your teacher to ask for leave.
Marks will be awarded for content, organization, grammar and appropriateness.

【正确答案】Dear Professor Li,
I am sorry that I have to ask for 2-days' leave. I have just received a phone call from my mother at the hospital. She is ill and I must get there right away. I will try my best to make up for the missing lessons and finish all the homework on time. Thanks a lot for your understanding!
Yours Sincerely,
Bob
【答案解析】