难忘的一堂课(An Unforgttabl Lsson)last friday , w had an lsson and it was rally unforgttabl bcaus it was th last lsson givn by our kind nglish tachr ,mr tang.whn mr tang slowly wnt into th classroom ,w could s clarly that it was hard for him to lav us though h had taught us for only thr months.h said somthing about him futur plan ,which movd us all dply.thn h startd th last lsson.w all listnd attntivly(认真地) to vry word h said .if only w had don lik this bfor!(如果我们以前就这样该多好啊)th naughty boys unusually bhavd wll in this last lsson.it was obvious(明显的)that all of us had th common fling that w wouldn't lt him go.though w didn't want our good tachr to go ,it smd to b too lat . as th saying gos,"only whn w los somthing do w raliz th valu of it."(这句你应该能理解)at last,with th bll ringing,mr tang lookd at us all soulfully(深情地) and xprssd what h thought. h hopd that w would mak progrss in our study and bcom good citizns(公民) in socity.what an unforgttabl lsson!