单选题 We always have ______ supper at 7 o' clock, we had ______ good supper yesterday.
A. ×,a B. a, a C. ×,× D. a,×

【正确答案】 A

【答案解析】在一日三餐的名词前一般不用冠词，但此类名词如有形容词修饰，表示“一顿的早 (中、晚)餐”时用不定冠词a。