My mom once worked in a very small village school which isonly on foot.A. acceptable B. a

问题补充：

My mom once worked in a very small village school, which isonly on foot.

A. acceptable

B. adequate

C. accessible

D. appropriate

答案：

A. acceptable

B. adequate

(答案→)C. accessible

D. appropriate

解析：考查形容词：A、acceptable可接受的，B、adequate足够的，C、accessible可到达的，易接近的，D、appropriate适当的，句意：我妈妈曾经在一个小村子的学校工作，那只有步行才能到达。选C。