问题补充：
Iin the house whichbooks and magazines.
A. am used to live;use to keeping
B. used to live;has been used to keeping
C. have been used to living;was used to keep
D. was used to live;was used to keep
答案：
A. am used to live;use to keeping
B. used to live;has been used to keeping
(答案→)C. have been used to living;was used to keep
D. was used to live;was used to keep
解析：此题考查used to do,意思是“过去常常做某事”，指“过去习惯做某事或经常做什么”，只能用于过去时；be used to+n./doing sth.意思是“习惯于做某事”，后接名词或动名词，其中的to为介词；be used to do意思为“被用来做某事”，后接动词不定式。句意为“我已经习惯了生活在这个过去用来存放书和杂志的房子里了”。
