Does he likes going fishing 找出错误
答案：是把原句中likes还原成like.
因为Does是助动词,如果在疑问句中疑问词是does、do、did这样的助动词,后面的所有词都要还原成原形.
例句：Does she plays the piano?
答案：是把plays还原成play.因为这句是疑问句,且疑问词是助动词,所以就要把动词还原形.