Julie was good at German，French and Russian，all of she spoke fluently.
A. who
B. whom
C. which
D. that
网友回答
A. who
B. whom
(答案→)C. which
D. that
解析：C解析：考查定语从句。分析句子成分后可知，此题中先行词为“German，French，Russian”，在介词0f后只能用 which或whom引导定语从句，而先行词指物，排除whom， 故C项正确。句意为“Julie擅长德语.法语和俄语，这三种语言她都能说得很流利。”
【失分点分析】此题考生容易误选为B项whom。注意首先 要根据语境确定先行词为German，French，Russian，而不是Julie。