问题补充:
Though they are far away from school, the children who live in mountains go to school on foot.
A. ever
B. always
C. never
D. hardly ever
答案:
A. ever
(答案→)B. always
C. never
D. hardly ever
解析:ever曾经,永远;always一直,总是;never从来不,永远不;hardly ever几乎从来不。句意;尽管他们离学校很远,这些住在山里面的孩子们总是步行去学校。结合语境可知选B。