This is my dear teacher without help I couldn’t have passed that difficult exam.
A. who
B. whom
C. whose
D. That
网友回答
A. who
B. whom
(答案→)C. whose
D. That
解析：考察定语从句。本题又一次考察了whose引导的定语从句。先行词是my dear teacher。Whose指代先行词在句中作为名词help的定语，修饰该名词。句意：这是我亲爱的老师，要是没有她的帮助，我就无法通过这次困难的考试。定语从句中其他的关系词都不能做定语，故C正确。