问题补充：
The musicians may start as a group of high-school students, practising their music in someone’s house is the first step to fame.
A. for which
B. for whose
C. for them
D. for whom
答案：
A. for which
B. for whose
C. for them
(答案→)D. for whom
解析：本题定语从句的先行词是a group of high-school students,关系代词whom指代先行词作为定语从句中介词for的宾语，定语从句中的主语是动名词短语practising their music in someone’s house。本题容易错选B项，认为whose修饰动名词，那样句子的结构就出现了混乱。句义：这些音乐家也许就是从一群高中生开始的，对于他们来说，在某个人的家里练习是走向成功的第一步。故D正确。
