that boy is skating.【复数】david plays the piano in the music room.【改成现在进行时】

that boy is skating.【复数】david plays the piano in the music room.【改成现在进行时】 The litte boy is skating ______ his skateboar. It seems that Lucy is good at skating.(同义句) Lucy ----- ----- ----- good at skating. The little boy is good at skating.Thelittleboy — — — skating.写出同义词 每词1空 who is that little boy Whose is that boy?改错 That boy is a little ( ) That() English boy is Bob And _____ is that boy? ( )The little boy is skating _____ his skateboard.A.of B.in C.on who is that boy?H( )is jack. ( )is that boy he is my brother. that,the,tree,who,boy,in,is(?) that, the, tree, who, boy, in, is, who is that boy?怎么回答? 改错：it is that a boy? That boy is a monster是什么意思 that boy is good.改复数