walk 是实意动词,在疑问句中不能单独构成谓语,需要和助动词一起构成谓语,同时实意动词要用原型。 根据这句话的时态来判断,助动词应该用does,这句话就应变成:Where does he walk every evening? 简单的说,这句话的结构就变成了:特殊疑问词(Where)+助动词(does)+主语(he)+实意动词的原型(walk)+时间状语(every evening).
what colours, aren't they? what a smell, isn't it? neither you nor i am engineer, are we? either you or he is right,isn’t he? 否定前缀不能视为否定词,其反意疑问句仍用否定形式。 it is impossible, isn't it? he is not unkind to his classmates, is he?