题目

Dear friends,Our high school is so wonderful. With the College Entrance Examination approaching, it won't be long 25.________ we graduate. Now, I have 26.m________ to share with all of you. Firstly, I still must try my best to make 27.________ for the lost time and work hard, for I believe hard work is the key to 28.________ (成功). Secondly, I'd like to show my appreciation to those 29.s________ by me all the way, teachers, parents and friends 30.________ (包括). Without your help and advice, my life would be 31.d________. Thirdly, I will treasure the friendship 32.b________ all of 下列各生态系统中，自动调节能力最大的是（   ）A.森林生态系统           B.草原生态系统C.城市生态系统           D.农田生态系统