【正确答案】正确答案： Pedestrian Safety Roads are dangerous places for people on foot. / So, it is important for pedestrians to be aware / that traffic may be approaching from unexpected directions. / Here is some general knowledge to bear in mind. / First, pedestrians are not allowed to walk along or cross any motorway at any time. / Second, it's advisable to use crossings whenever you can / although it's not illegal to cross the road at any point apart from motorways. / Third, you may cross the road when the green man is showing. / But you must not start to cross if the light is flashing. /