a couple of coffees 和a cup of coffee中coffee 一个要加s一个不能加

Two ____, please. A. coffee B. coffees C. cup of coffee D. c a cup of coffee a cup of coffee中间为什么要加of呢,不加不可以吗 这里的drink为何要加S：IF each of them drinks a cup of coffee in a mo 英语:喝杯咖啡怎么样?How about drinking a cup of coffee?中为什么drink要加ing coffee既是CN又是UN,coffee可以写成a coffee=one cup of coffee 那tea 和 m I've just had a cup of coffee,这里have是什么意思,一定要加吗? Please give me a cup of coffee. A cup of coffee?作否定回答 a cup of coffee 是什么短语 is tom drink a cup of coffee? she s___ me a cup of coffee