There’s too much noise here. I think we need a place to study.A. cleanerB. noisierC. small

问题补充：

There’s too much noise here. I think we need a place to study.

A. cleaner

B. noisier

C. smaller

D. quieter

答案：

A. cleaner

B. noisier

C. smaller

(答案→)D. quieter

解析：这儿太吵了，那么肯定需要一个安静的地方学习，quiet表示安静的意思，故选D。