If we had taken such effective measures much earlier, the river__________so seriously now.
There are not enough seats for the guests. We need _____ chairs.
Parks are _____ of the few places where people in cities may have sports.
_____ of the world’s books and newspapers are written in English.
Most English people have ______ names: _____ name, a middle name and the family name.
Tom began to learn Russian by himself in _____.