We must keep the classroom ___________.
#61530
A
clean
B
to clean
C
cleaning
D
cleaned
推荐题目
—The terrible rainstorm hit the small villages and     .—How unlucky the villagers were!
#55606
A
washes them away
B
washed them away
C
washes away them
D
washed away them
The firemen soon ________ the big fire.
#58352
A
put off
B
put up
C
put out
D
put on
Where do you plan_______ your holiday after you finish     the novel?
#57495
A
to spend; writing
B
spending; writing
C
spending; to write
D
to spend; to write