The new traffic laws were put into use  24  May 1st, 2004．The new traffic laws will  25 the streets safer for walking and driving．

15．A．excited                B．tired                    C．surprised              D．worried

（B）

cars than before．Every day many people are  17   while they cross the road．Most of  18  are old people and children．Old people are often killed   19  they usually can't see clearly or hear very well． 20  are killed because they are careless．

A car，truck or bus can't stop very 21  L if it is going very fast．The faster a car is traveling，22  it takes to stop．But people walking in the street do not always understand this．It's  23  for people to know how fast a car is traveling．

14．A．information         B．relaxing               C．traveling                D．advertisement

13．A．room                   B．place                   C．house                     D．1and

12．A．Soon                   B．Yet                      C．Instead                   D．After

11．A．change                B．paint                   C．sell                        D．mend

10．A．track                   B．conductor            C．passenger               D．noise

9．A．address                  B．way                     C．key                     D．trip

8．A．got on                   B．looked for            C．got off                 D．waited for

7．A．attacked                B． frightened          C．trapped                  D．attracted