At the beginning, I found it hard to get up early. Now I it.A. used toB. am used toC. use

At the beginning, I found it hard to get up early. Now I it.
A. used to
B. am used to
C. use to
D. am used for

A. used to(答案→)B. am used toC. use toD. am used for解析：此题重点考查be used to doing sth、used to do sth 和be used for doing sth几个句型结构的区别和意义。be used to doing sth是习惯做某事，used to do sth表示过去常常做某事，现在不做了。be used for doing sth表示被用来做某事。根据语境可知选择B。

这个解释是对的