道歉信
You had an appointment with your friend last Friday. Unfortunately, you did not keep the appointment because your mother fell ill at that time. Write a letter to your friend to:
1.apologize for not attending the appointment as planned,
2.explain why you could not meet him/her that day,
3.make suggestion for another appointment next time.
Dear Linda,
称呼：写给关系亲密的个人
I am excessively sorry to say that I had failed to keep the appointment that we made last Friday.
Now, I am writing you this letter of apology to show my deep regret.
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