he started swim when he was four years old语法是否正确?

he started swim when he was four years old语法是否正确? he first started a___ when he started swimming when he was four years old,同义句he started swimming ( ) ( ) he started swimming when he was four years old 等于 he started swimming _____the____of four. He started swimming when he was four years old .(同义句) He started swimming（ ）（ ） he started to learn the piano when he was When he was five years old ,he could swim ( )( )( )( )( )five,he( )( )( )swim同义句转换 He often _________ (swim) when he _____(be)young. tom started golfing when he _____(be)ten years old what is han s thought when he first started skating I smelt a reat when he started being so kelpful He could swim when he was five,and l could swim,too.（使两句意思基本一致）He could swim when he was five.( ) ( ) ( ) He__________(learn)_________(swim) when he ______(be)young. ( )your brother swim when he was four years old?CanCouldDoDoes He started drawing when he was three yeas old,and when he is five,he is alre中文翻译 He said he （）swim when he was six 这里是could还是couldn‘t --how long did he ____ --for 12 yearsswimming B.started swimming C.swim D.swam 选C,为什么 He started working with puppets when he was only eight years old.译成中文