【我得讲一篇短文改错,但是我的英语水平很烂,改时写清为什么吧,最好详细点,Ihavebeenplaypianoforfouryears.Lastyearwheniheardthenewswhichtherewasgoingtobeapianoperformancecameupinafewweeks,Ifeltve】

　　我得讲一篇短文改错,但是我的英语水平很烂,改时写清为什么吧,最好详细点,

　　Ihavebeenplaypianoforfouryears.Lastyearwheniheardthenewswhichtherewasgoingtobeapianoperformancecameupinafewweeks,Ifeltverynervous.Finallycamethatday.whenwearrivedattheconcerthall,myhandstartedshakingexpectedly.However,justlookingatmyteacher'swarmfacelethimgetbackself-confidence.Whenitwasmyturntoperform,Igoupthestageandplayedthepiecefrombeginningtoanendpleasantly.Soon,thecheersfilledtheconcerthall.Ifeltveryhappyandveryproudmyself.Thatismyfirstpianoperformance,butIwillneverforgetitfortherestofmylife.

　　一共有十处错误,每句话不超过两处.