题目内容
-What a clean and bright classroom, isn't it?
-Yes, it's always clean and bright because it ________ every day.
[ ]
A.
cleans
B.
cleaned
C.
is cleaned
D.
was cleaned
答案:C
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题目内容
-What a clean and bright classroom, isn't it?
-Yes, it's always clean and bright because it ________ every day.
cleans
cleaned
is cleaned
was cleaned