改错1.Thechildrenwererunningontheplaygroundasfastastheycan.2.Sinceherhusbandhaddied,soshehadtosupportherfamily.3.Hewon'tgooutuntilhismotherwillcome.4.Hewasveryfoolishthathedidn'tpasssuchaneasyexam.5.Tomhadg

　　改错

　　1.Thechildrenwererunningontheplaygroundasfastastheycan.

　　2.Sinceherhusbandhaddied,soshehadtosupportherfamily.

　　3.Hewon'tgooutuntilhismotherwillcome.

　　4.Hewasveryfoolishthathedidn'tpasssuchaneasyexam.

　　5.Tomhadgoneoutassoonashismothergothome.

　　6.Itwasthreemonthssincehecametoourschool.

　　8.ThestreetsinNanjingarewiderthanShanghai.

　　9.Whateverthreeispientyofsunandrain,thefieldsaregreen.

　　10.Shesingssongsasifsheisabird.