He goes to work__.A,by his bike B,on his bike C,bo a bike D,on bike

问题描述:

He goes to work__.A,by his bike B,on his bike C,bo a bike D,on bike

选B on one's bike骑自行车
by bike 是固定词组,中间什么都不加,A 选项错误,
CD 都是错误的