——Is there any possible way to help them get rid of such a bad habit? ——To tell the truth, it’s very hard. But we_______ on this problem.
Mark Twin wrote many popular novels in his life, ________ The Adventures of Tom Sawyer is a best example.
I watched everyone hurrying to and fro, most with eyes ____ the ground.
–I _______ as the manager in this company. –May I know since when?
Some foreign media predict that all these reforms will make China a strong and powerful country, ______ that can surprise the whole world.
The building ______ roof we can see from here is a hotel.