问题补充：
–How clean and tidy your bedroom is!” –Thank you. It every day.
A. cleans
B. is cleaned
C. was cleaned
D. is cleaning
答案：
A. cleans
(答案→)B. is cleaned
C. was cleaned
D. is cleaning
解析：根据文章前面的句子的意思可知本题考查的被动语态，考查的是一般现在时的被动语态，其结构为主语+is或are，am+动词的过去分词，故选B
