The house, which is large and is surrounded by trees and flowers, is       what she longs for ．

---Fish need water to survive; _____ , we human beings rely on air to live.

Five firemen ________ escaped death when a staircase collapsed beneath their feet. 

The Minister of France stresses that the quality of goods , _______ the quantity of production , is the key to improving the nation’s economy .

        ，the wind died down and people began to appear on the street.