She loves the song , because her mother was once the singer of it.
A. in practice
B. in theory
C. in particular
D. in reality
网友回答
A. in practice
B. in theory
(答案→)C. in particular
D. in reality
解析：考查词组：A. in practice实践上，B. in theory理论上，C. in particular尤其，特别，，D. in reality事实上，句意：她特别喜欢这首歌，因为她妈妈曾经是唱这首歌的歌手。选C。