Complete the following sentence with a (compound) word derived from the one given in bracket.
He only ate a few（ ）of food and then left home in a hurry. (mouth)
【正确答案】：MOUTHFUL
【题目解析】：
本题考查常见名词的衍生名词。
由a few和of可知，空缺处应填名词，分析语境，应为吃了一小口，mouth加后缀-ful衍生为mouthful意为“一口”。
句意：他只吃了一小口食物就匆忙出门了。