问题补充：
Her mother her stories patiently every evening when she was a little girl.
A. was used to tell
B. is used to telling
C. used to tell
D. used to telling
答案：
A. was used to tell
B. is used to telling
(答案→)C. used to tell
D. used to telling
解析： 考察词组辨析:be used to do”用来做…”,used to do过去常常做,be used to doing习惯于做,句意是:她小的时候,她妈妈常常每天晚上耐心的给她讲故事.选C.
