Mary to school on foot every morning.A. goB. goesC. wentD. will go

问题补充：

Mary to school on foot every morning.

A. go

B. goes

C. went

D. will go

答案：

A. go

(答案→)B. goes

C. went

D. will go

解析：句意:玛丽每早上步行上学。根据时间状语every morning可知此空应用一般现在时态，主语Mary是第三人称单数，所以谓语动词用第三人称单数，故选B。