–Our classroom _________ twice a day. So it is very clean.–It is important for us to do this.
#44640
A
is sweeping
B
is swept
C
sweeps
D
has swept
推荐题目
The man is very ill and he has _______.
#44621
A
operate on
B
to be operated on
C
to operate
D
being operated on
—Wow! Your school is so beautiful!—Thank you! It _____ last year.
#44563
A
build
B
built
C
is built
D
was built
The computer game ______ well and _____ out very soon.
#45027
A
sells, is sold
B
sells, sells
C
is sold, sells
D
is sold, is sold