Only after staying in England for a few weeks did Li Lei bee used
Chinese.
A. to not speaking
B. not to speaking
C. to not speak
D. not to speak
网友回答
A. to not speaking
(答案→)B. not to speaking
C. to not speak
D. not to speak
解析：be / bee used not to doing sth.是固定句型，意思是习惯了不做某事，故选B。