We have__dinner late in the evening .A.a B.an C.one D./
问题描述：
We have__dinner late in the evening .A.a B.an C.one D./
答
D have dinner 吃晚饭
have lunch 吃午饭
这里是指抽象概念的,不是指一顿饭,所以不需要加冠词表示单数的