英语改错请找出下列句子中的错误,并改正.1.Ihaveboughtthepianoforsixyears.2.wherehaveyougone----I’vegonetoshool.3.Howmanypageshaveyoureadbytheendoflastyear4.whileIwalkedinthesteet,Isawmyteacher.

　　英语改错请找出下列句子中的错误,并改正.

　　1.Ihaveboughtthepianoforsixyears.

　　2.wherehaveyougone----I’vegonetoshool.

　　3.Howmanypageshaveyoureadbytheendoflastyear

　　4.whileIwalkedinthesteet,Isawmyteacher.

　　5.Theyhavehadtheirlunchattweleve

　　6.Theworkershaverepairedthemachinesjustnow.

　　7.Youhavewaitedheresincetwohours