The noise was so（ ）that only those with sensitive hearing were a

The noise was so（ ）that only those with sensitive hearing were aware of it.


A、

dim


B、

soft


C、

faint


D、

gentle


【正确答案】：C
【题目解析】：

A.dim：昏暗的；B.soft：柔软的；C.faint：微弱的；D.gentle：温和的，因为说的是噪声，声音不能是昏暗的，也不能是柔软的，gentle主要形容人，所以是faint：微弱的，选C。句意：噪音太小了，只有那些听觉灵敏的人才知道。