My grandfather us stories when I was young.
A. was used to tell
B. is used to telling
C. used to tell
D. used to telling
网友回答
A. was used to tell
B. is used to telling
(答案→)C. used to tell
D. used to telling
解析：be used to sth习惯于某事;used to do sth过去常常做某事.