— 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
Sixteen-year-olds         to drive.
#44679
A
is allowed
B
are not allowed
C
allowed
D
is not allowed
It is true that knowledge_____ rather than being taught. 
#44980
A
learns
B
learned
C
is learned
D
was learned
Yuan Longping, a great person in China, _____as “father of hybrid rice”
#44978
A
is regarded
B
has regarded
C
is regarding
D
regards
These books should      to the library on time. 
#44981
A
send
B
be returned
C
give back
D
be got back