______ food is hard to find, few birds remain throughout Wap版

试题详情及答案解析

______ food is hard to find, few birds remain throughout the year.

A．Where

B．Although

C．Unless

D．When

答案：A

试题分析：考查从句。从句food is hard to find不缺少成份，所以只能在关系副词里选择，Where 表示地点，When表示时间，句意：那里的食物很难找到，一年到头很少的鸟停留。所以选B。
考点：考查从句。