分类：教育/科学-外语学习
问题：急！请教英语选择题！谢谢！19Themusicgrewsofte 
The  grew softer and softer until it was scarcely _________. A. visual         B. audible       C. luminous      D. negligible
回答：选B。 音乐变得越来越轻柔，直至后来几乎听不见了。