The policeman’s______ traffic directions made all the drivers quite ______ .

We’re glad to see the officials ______ for the fire accident in Shanghai punished.

As there is less and less coal and oil, scientists are exploring new ways of making use of ____ energy, such as sunlight, wind and water for power and fuel.

The ______ look on the manager’s face suggested that he _______ to overcome the difficulty.

The weather is awful. If it gets _________, we can go out and have a basketball game with Class 2.