Peterson used to work in a remote mountain village school, which is only on foot.
A. reliable
B. accessible
C. available
D. convenient
网友回答
A. reliable
(答案→)B. accessible
C. available
D. convenient
解析：A. reliable 可靠的，B. accessible易接近的，易到达的，C. available可获得的，D. convenient便利的，句意：Peterson过去在一个遥远的山村工作，那里只有步行能够到达。根据句意选B。