Motoring Techonlogy　　1.2 million road deaths worldwide occur each year,plus a further 50 million injuries.To reduce car crash rate,much research now is focused on safety and new fuels-though some electric vehicle and biofuel research aims at going faster.　　Some safety developments aim to improve your vision.Radar can spot obstacles in fog,while other technologysees throughbig vehicles blocking your view.　　But whatever is in the fuel tank,you dont want a thief in the driving seat and there have been many innovations.Satellite tracking and remote communications can also come into play if you crash,automatically calling for help.　　1.To reduce car crash rate,many scientists are working hard to　　B.develop faster electric vehicles.　　D.improve the safety of cars and develop new fuels.　　A.heavy traffic.　　C.engine failure.　　3.Which of the following safety developments is NOT mentioned in the passage?　　B.Radars that can help drivers to see obstacles in fog.　　D.Improvements in seat belts,pedal controls and tyres.　　A.reduce oil consumption.　　C.call for help when ones car crashes.　　5.Which of the following statements is true of robotic drivers?　　B.Robotic drivers are not allowed to driveon busy roads.　　D.Robotic drivers are too expensive to use.