题目内容：

she is a famous singer and her voice()sweet.
A listens B hears C sounds 原因啊

优质解答

这么几个大案比较起来C要好一点,但总觉得这不地道,正确的应该用is.listen一般是指听说话的内容,hear一般是强调听到,sound口语里一般表示
"听起来”怎么样,比如人家邀请你去玩,你可以说：that sounds a good idea.