Complete each of the following sentences with a (compound) word derived from the one(s) given in the brackets.
When he burst in, he found a （ ）of reporters. (room)
【正确答案】：ROOMFUL
【题目解析】：
本题考查的是常见名词的衍生名词。
由a...of可知，空缺处应填名词，room加上后缀-ful可衍生为roomful意为“满房间”。
句意：当他闯进来时，他发现满屋子的记者。
