[A] By car [B] On foot [C] By taxi
18 When is the heavy traffic on most city streets according to the passage?
[A] During 9:00 a.m and 5:00 p.m from Monday to Friday
[B] Between 8:00 a.m. and 6:00 p.m from Monday to Friday
[C] In the period of 9:00 a.m and 5:00 p.m every day
19 Which of the following is not against the laws in big cities to cross the street?
[A] At any place [B] At the corner [C] At any place without traffic.
20 Why may people not follow closely the traffic laws in small towns?
[A] Because the streets are not crowded
[B] Because people don't like laws
[C] Because cars take care of people