求英语作文 my most memorable examination

A bitter lesson is always to be remembered to the end of my life.
Last semester, I had an embarrassed experience in my examination. After having a round looked through the sheets, I began to answer them one by one. The examination questions seemed somewhat so easy that it took me only half of the hours to fulfil them with the slightest effort. When I was checking up my paper, one of my classmates next to me asked me to pass the last sheet of mine to him for cheating. I generously satisfied him after having gone over it first. No sooner had I finished reviewing my sheets, he stealthily returned it to me. Without having a simple glance, I placed it back, stood up and handed them to the teacher. Unfortunately, I didn’t know he had stolen mine and replaced it for his until the teacher questioned me why I had cheated in the exam.