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。
The noise was so（ ）that only those with sensitive hearing were aware of it.
The noise was so（ ）that only those with sensitive hearing were aware of it.
dim
soft
faint
gentle
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。