Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer that best fits each of the numbered blanks.

___(1)___ an earthquake happens, people can die from lack of food, water, and medical supplies. The amount of destruction ___(2)___ by an earthquake depends on where it happens, what time it happens, and how strong it is. It also depends on types of buildings, soil conditions and population. Of the 6,000 earthquakes in the world each year, only about 15 cause great damage and many deaths.
If seismologists could ___(3)___ earthquakes, we could save about 20,000 human lives each year. Man can control ___(4)___ things about nature, ___(5)___ we cannot control earthquakes.