单选题 Butter and bread ______ their daily food, but the bread and the butter up now.
【正确答案】 D
【答案解析】 [解析] “butter and bread”是单数名词，意思是“抹黄油的面包”或“面包抹黄油”，故动词用单数形式，排除B项和C项；“the bread and the butter”是指“面包和黄油”，是复数名词，排除A项。故选D。