A. Earthquakes forecast
B. Historical records of earthquakes
C. Intensities of earthquakes
D. Cause of earthquakes
E. Indications of earthquakes
F. Damaging earthquakes
5. Not all damage during an earthquake is caused by____________.
6. Not all earthquakes are strong enough to cause ___________.
7. Scientists have been working hard to warn people of ____________.
8. Earthquakes can be predicted by observing ______________.
A. the quake itself
B. accurate prediction
C. damage of property and loss of lives
D. a possible earthquake
E. the unusual behaviors of some animals
F. the strong behaviors of human beings