______do you think of your teacher?
—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.
Many more trees should ____ this year.