Disaster Created presentation.
To form the past simple passive, use the past simple form of the verb “to be” and the “past participle”
Every year on all Earth occurs about one million earthquakes, but the majority of them so are insignificant that they remain not noticed. Really strong earthquakes, capable to cause extensive destructions, happen on a planet about time in two weeks. Their big part is necessary on a bottom of oceans and consequently it is not accompanied by catastrophic consequences (if earthquake under ocean does without a ММ