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：考查形容词：A．reliable可靠的B．accessible易接近的，C．available可利用的， D．convenient方便的，句意：Peterson过去在偏远的山区工作，那里只有步行可以到达。选B。