used to do与be used to doing辨析 — 英语选择题
题目
以前,Leo在课堂上很安静;现在,他习惯在同学面前发言。Leo ______ quiet in class, but now he ______ speaking in front of his classmates.
A. used to be; is used to
B. was used to be; used to
C. used to being; is used to
D. is used to be; used to speaking