说sound clear还是clearly?

说sound clear还是clearly? 想法好是用sound good还是sound well clean conscience 还是clear conscience clear room 和clean room是不是都是清洗间的意思?通用?还是说clear和clean要加ing的 sounds good 还是sound good sound the 原句是HAVING raised the alarm on deflation,the Federal Reserve has now begun to sound the all clear 不可数名词：例river is clear还是river are clear? sound like中sound是名词还是动词 that 's sound good还是that 's sound nicert the sound of中的sound 是名词还是动词 playing football sound interesting是sound 还是sounds? It may sound unlikely里是sound还是sounds clear clear clear have a sound 顺便说一下,have a sound sleep=be a sound sleeper Sound sound