单选题 In previous times, when fresh meat was in short ______, pigeons were kept by many households as a source of food.
A. store B. provision C. reserve D. supply

【正确答案】 D
【答案解析】[解析] 介词短语固定搭配题。in short supply构成固定短语，意思为“不足的，缺乏的”。