We must do everything what we can _______ water and paper.
#48856
A
save
B
saving
C
to save
D
saved
推荐题目
---What should I do, doctor? ---_______healthy, you should take more exercise.
#48708
A
Keep
B
To keep
C
Keeping
D
To keep away from
— It’s a fine day today. How about __________? — Sounds great!
#51200
A
go hiking
B
go to hike
C
going hiking
D
to go to hike
– When are you leaving for the concert? --I’m not sure. I haven’t finished ____ the dishes.
#51406
A
do
B
to do
C
doing
D
done