4. If you leave the tap running while brushing your teeth, you will waste water.
5. Since special computers were invented, the paths of hurricanes have been predicted.
6. If the weather weren't bad, we could go hiking in the mountains.
7. How high were the waves in the Japanes tsunami 2011?
8. If I were you, I would study English in the UK.
9. Specific regions will be affected by global warming in different ways.
10. The Hawaii volcano hasn't erupted for two years.
XII,
1. I had never been in an earth quake before.
2. The wind have been blowing for three hours.
3. If I were you, I would practice Drop, Cover and Hold On with my family.
4. During the past two years, much of southeastern Austrailia has been affected by drought.
5. Earthquakes are much more destructive than typhoons are.
6. It took firefighters three hours to put out the blaze.
7. The Japanese Capital and surrounding regions was hit by typhoon Faxai on Monday.
8. The bad weather prevented the plane from taking off.
9. We got caught in a thunderstorm on the way back home yesterday.
10. Jenny should raise money for flood victims.
