同义词组转换:① go home by bike = ride a bike home ; gohomeonabike( 骑自行车回家)② come to school by bus = take a bus to school (坐公共汽车来学校)③ go to ( the ) park on foot = walk to ( the ) park (步行去公园 ) ④ go shopping by subway = take a subway to go shopping ( 乘地铁去购物)