I used to in the morning but now I’m used to before going to bed. A. read; readB. readi

问题补充：

I used to in the morning, but now I’m used to before going to bed.

A. read; read

B. reading; read

C. read, reading

D. reading, reading

答案：

A. read; read

B. reading; read

(答案→)C. read, reading

D. reading, reading

解析：be used to sth/doing sth习惯于某事;used to do sth过去常常做某事.句意:我过去常常在早晨读书，但是我现在习惯了在睡觉前读书。故选C。