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问题: 英语选择题,请帮忙分析正确选项,并翻译整句话,谢谢!

She is used to _____ the cleaner.which is used to ____the house.
A.using;clean
B.using;cleaning
C.used;cleaned
D.use;cleaning

解答:

选A。
be /get used to + sth./doing sth.习惯于...
be used to + 动原 被用于做。。。(被动语态)