17 What's the best way to travel in most cities?

[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