Answer:
Past indefinite indicates that the action described in a sentence has happened before and is not a current happening.
Example:
She watched television. The example indicates that the action of watching was an event of the past.
Answer:
Coal and oil are fossil fuels.
Explanation:
Wind is usable as renewable energy. Coal and oil were formed long, long ago and we will run out of them eventually.
And they yelled because they are performing both actions at once
