Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
There was a noisy（ ）at the back of the hall before the speaker began his speech. (disturb)
【正确答案】：DISTURBANCE
【题目解析】：
本题考查名词。
根据空前的noisy（吵闹的）是一个形容词，因此空格处应该填写一个名词形式。所以答案为disturbance。
句意：在演讲者开始演讲之前，大厅后面发生了一场喧闹的骚乱。