Mary was given a huge pay rise as a       for her great efforts in improving sales.

The factory near the seaside was closed down as a(n) ________ of the terribly bad management and fund shortage.

In rencent years, China and the USA have been a lot of_____of views about the same problem. 

Burning all the lights in the classroom will be a great______ on electric power.

Every weekend my younger brother will go to help the old man far away my house,for which he often received some            from the old man,such as a pencil and some sugar.