A、They have been hospitalized. B、They have got skin problems. C、They were Choked by the thick smoke. D、They were poisoned by the

Good afternoon. This is Diane Martinet with the midday news on KALF. Fires in California continue to burn out of control, and several small towns in the forests near San Francisco are still in danger. One of the greatest dangers to the 500 firefighters, however, comes not from the fires, but from poison plants in the forest. Many firefighters have got skin problems after touching the plants, and at least three have had to go to the hospital for treatment for their skin problems.
    NASA, the National Aeronautics and Space Agency, today announced in Florida that the next space shuttle mission has been canceled. The mission was scheduled for an 11:30 a. m. takeoff on Tuesday. However, the flight has been canceled because of problems with the spaceship’s central computer system. NASA technicians noticed the computer problems during last-minute checks.
    Seven teenager computer specialists have been arrested by police in New Jersey. After taking an advanced computer course at school, the seven boys, all from Princeton, New Jersey, illegally obtain top-secret information from government computers in Washington. They also started to use their home computers to access telephone networks.
    In New York, the value of the dollars stayed the same today. But in Tokyo, the dollar fell dramatically. At the end of the day, it was worth 83 yen, compared to 88 yen yesterday.
16. What does the midday news on KALF say about fires in California?
17. What do we learn about many of the firefighters?
18. What do we learn from the news about the space shuttle mission?
19. What do we learn about the seven boys in New Jersey?