In the fields everything _____ to grow.
---How about going to the park together?---________
—Excuse me, ____ is it from our school to Huanglong Stadium?—About ____ drive.
––David has made much progress in Chinese this year.––____. He has reached a level which is quite good.
He found ____ very difficult _____ the problem.
—Which sweater can you choose, the blue one or the red one?—____ is OK, I think. Both go well with my trousers.