— 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
Is rice __________in your country, too?
#44545
A
growing
B
grows
C
grew
D
grown
Trees ________ every year to make our city greener.
#44941
A
plant
B
are planted
C
were planted
D
will be planted
Bikes ______ in the 1880s and they ______ traveling around.
#45063
A
were invented; were used as
B
were invented; are used for
C
was invented; was used for
D
invented; are used to