问题
选择题
— Your classroom looks bright and tidy.
— It after school every day.
A．cleans
B．cleaned
C．is cleaned
D．was cleaned
答案
答案：C
考查情景交际和被动语态。“你们的教室看起来既明亮又整洁。”“它每天放学都被打扫。”被动语态的构成是am/is/are done sth.，every day“每天”，常与一般现在时连用。故被动语态用is。故选C。