✔ 最佳答案
You can try to use this sample as below:
Dear Miss/Sir,
So apologize to neglected my homework at previous time. I am fully understand it is my responsibility and never excuse. I also very clear about we need to learn seriously and respect each teachers. My teachers really kind and working hard to teach their knowledge and share their experience to me. I am so glad to increase my knowledge from my teachers. I really hope to keep this chance for all the time.
In fact, I must be remember everything about my homework everytime. Besides, I promise the previous mistake would be never happen again. Hoping you would like to forgive me on this case. I also respect to your any handling decision about my fault.
Finally, I must be appreciate for my teacher to give me an improve chance. I am very grateful to have my teachers help me growing up and develop opportunity.
Yours faithfully,
_____________
XXXX XXX XXX
30Jan2008
Hoping it can help you!!