&lt;p&gt;写作(One possible version)第一节Hi David,I'm writing to express my sincere apologies as I won't be able to join you in volunteering atthe local nursing home this Saturday.Unfortunately,I've come down with a sudden cold and mydoctor advised me to rest at home.I'm truly disappointed that I can't fulfill our commitment.However,I'm eager to rescheduleour volunteer activity once I recover.Could we perhaps aim for next weekend or any other daythat suits you?Please let me know your availability,and we can make the necessary arrangementsaccordingly.Once again,I apologize for any inconvenience caused and I deeply appreciate yourunderstanding.Looking forward to hearing from you soon.Best regards,Li Hua&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;/p&gt;