-How clean and tidy your bedroom is！
-Thank you. It every day:
A. cleans
B. is cleaned
C. was cleaned
D. is cleaning
网友回答
A. cleans
(答案→)B. is cleaned
C. was cleaned
D. is cleaning
解析：根据语境可知此题考查的是一般现在时的被动语态的基本构成和用法。卧室天天被打扫，主语是卧室，是动作的承受者，并且是习惯性的动作，故用一般现在时的被动语态。主语是单数故选B。