20．With more and more cars on the road，traffic jams are inevitable（不可避免的）．Traffic jams can lead to increased accidents as there are more cars．It's impossible to avoid traffic jams altogether．（16）G
Check for traffic jams before you leave．
You can listen to the radio for traffic news，or check on the Internet to get up-to-minute information on traffic．If the route you want to take is heavy with traffic，you can choose another．
Look for a different route all the time．
Most traffic jams happen on busy roads．（17）FAlthough the distance you may have to travel is further，it can work out quicker．
Set your car radio to receive traffic bulletins．
Many new car stereo systems （汽车音响系统） are equipped with a radio system by which you can hear the traffic channel．（18）E
（19）A
Most traffic jams usually occur during rush hour，so try to avoid this time period if possible．Some jobs offer flexible working hours so that you can travel to work outside of rush hour．Some jobs even allow you to work at home so as to avoid moving altogether．Ask your manager to see what you can do if traffic is a problem for you．
Use public transport alternatives where available．
（20）CNot only will you avoid traffic jams but you will most likely be saving money as the cost of motoring rises．
A．Try traveling at different time．
B．What should we do to prevent traffic accidents？
C．The easiest way to avoid traffic jams is to take buses or the underground instead of driving your own car．
D．Public transport is so important in our life that we should use it at any time．
E．This way you can get the latest traffic information and change your journey if necessary．
F．Using country roads could let you avoid a lot of traffic．
G．There are some tips you can follow to reduce the amount of time on the road．
