1. Where do traffic problem and pollution frequently happen?
-> c. big cities.
2. According to the passage, what causes traffic congestion in big cities?
-> b. too many cars on the roads
3. The high number of cars is caused by_________
-> d. the population.
4. The highway and road network is ________ of meeting the requirement of increasing number of vehicles.
-> a. full
5.Which of the followings is NOT true?
-> a. Only big cities have the problem of pollution.
Task 2:
(0) a.
(1) B
(2) D
(3) C
(4) A
(5) C
II. 0. B
1. B
2. D
3. C
4. A
5. C