— Your classroom looks bright and tidy.— It        after school every day.
#44914
A
cleans
B
cleaned
C
is cleaned
D
was cleaned
推荐题目
The radio says a wild animal zoo is going to ____ in our city. 
#44930
A
be built
B
built
C
build
D
be building
These books should      to the library on time. 
#44981
A
send
B
be returned
C
give back
D
be got back