______ will you come back? --- In an hour.How soon B. How often C. How long D. How far
We should have our students ________ hard instead of ________ too much time playing games.
My father bought a new bike for me yesterday. It’s a structure of__________.
---I plan to go to a movie. Would you like to go with me? ---_____. That’s my favourite.
After a short rest, the workers kept on _____ till midnight.
___of giant pandas is getting ___because their living areas are becoming farmland.