I. Choose the correct answers.
1. A drought happens when there_________ no rain in a place for a long time.
A. is B. was C. has been D. had been
2. A flood_________ when a large amount of water covers the land.
A. occurs B. is occurred C. is occurring D. has occurred
3. The size of earthquakes_________ on the Richter scale.
A. measures B. measured C. is measuring D. is measured
4. Hurricane Dorian_________ the Abaco Islands as a category 5 hurricane on September 1.
A. strike B. struck C. had struck D. was struck
5. At least 200 people_________ after rivers burst their banks in Colombia mudslides.
A. killed B. had killed C. were killed D. are being killed
6. Since Monday, more than a dozen tornadoes_________ down across Oklahoma.
A. touches B. touched C. have touched D. were touched
7. Hurricanes and heavy rains_________ with the help of technology.
A. predicted B. are predicting C. will predict D. can be predicted
8. A tornado watch is issued when there is a possibility that a tornado .
A. will touch B. is touched C. touched D. had touched
9. Before that day in Hawaii, we_________ a volcanic eruption.
A. never saw B. has never seen C. had never seen D. were never seen
10. So far, some of the storm damaged roads and bridges_________.
A. already repaired B. had already repaired
C. were already repaired D. have already been repaired
11. We_________ home when a hurricane hit the town two days ago. What a terrible experience!
A. are driving B. were driving C. drove D. had driven
12. Families camped out in a City park after their homes_________ by the earthquake.
A. have heavily damaged B. had damaged heavily
C. were heavily damaged D. are damaged heavily