Dear, ,
I am terribly sorry to tell you that,and I am writing this letter to show my deep regret.Please accept my sincere apology with gratitude.I hope you will understand my situation and excuse me for.
The reason whyis that.Under that circumstance,.Therefore,it was not my power to.
If possible,I would like to suggest that.I shall be obliged if you will kindly write and tell me.I am looking forward to seeing you again.
Yours,
Li Hua
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