ride a horse 为什么要加个a?

ride a horse 为什么要加个a? ride a horse can you ride a horse 跟 can you ride horse 为什么加A Linda can ride a horse.对ride a horse提问 by bike 和 ride a bike 的区别是什么?为什么骑马说成ride a horse? ride a horse 的中文意思是什么 he can ride a horse同义句 He can ride a horse now 对 ride a horse 提问 have fun这个英语是什么意思?ride a horse这个英语是什么意思?那 ride a horse中的a是什么意思 The bear can (ride a horse).特殊疑问句 Can the monkey ride a horse?(做肯定回答) I want ( ) ride a horse.请问括号里填什么? she can ride a horse 对she提问 1.He can ride a horse.【用who提问】. He can ride a horse. （改为否定句） my brother can ride a horse(改成现在进行时) 4. I______ (ride) a horse for the first time yesterday. Jane will ride a horse on the farm.改为现在完成时