写作题目：你生病住院时，同班同学曾探望过你，假设现在你在给他们写信，以表达感激之情，并告知现状。
参考文章：
A Letter For Gratitude
Dear Classmates，
First of all.please allow me to sayThank youto an of you.It is very kind of you to spare your valuable time during the period of final examinations and come to seeme.
Your visit has brought me much confidence and power to overcome the illness. During the first several days in hospital.I felt quite lonely,anxious and frightened.I Was almost collapsed by some pessimistic thoughts.But then you shown up，alongwith your smiling faces and warm words.Your appearance has made me feel that I am the luckiest person in this wonderful world.Now I regard the illness as nothing but a chance to harden myself.These days my condition has obviously improved thanks to the careful treatment by the doctors and nurses.1 will probably get recovered in a couple ofweeks.I hope that I Can see you earlier.
Again.special thanks go to all of you.
Sincerely Yours，
LiMing