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    Today the roads which was full 1 cars are the most dangerous places in the world．Thousands of people are killed or hurt by them．Especially in the U．S．A．，2 people are killed at Christmas every year．

    Children always cross the roads  3  ，of  course，everything possible is done to prevent danger，parents and teachers tell them to keep away from the dangers，warn them to be careful．But little children and pupils easily forget what they are told and step off the pavement or start to cross the road  4 looking whether anything is coming．

    One of the best ways to prevent children and pupils from   5 their lives on roads is to help them form certain habits．

1．A．with                      B．of                               C．in

2．A．a large number of     B．the large number of       C．a lot

3．A．carefully                B．careless                      C．carelessly

4．A．without                 B．with                           C．after

5．A．lose                       B．lost                             C．losing