—I don't mind how you do it ________ you finish the painting on time.—OK, I see.
— Is Mr Smith rich? — Yes, very rich. When he worked in ________town, he earned a lot. Now he has a big farm in ________ country.
In science fiction we read of flying saucers travel through _____ space, so people want to have ______ better knowledge of the universe.
In order to find _______ better job, he decided to study _________ second foreign language.
The biggest whale is ___ blue whale, which grows to be about 29 meters long—the height of ___ 9-story building.
We can never expect____bluer sky unless we create____ less polluted world.