Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the blanks.

The volume of traffic in many cities in the world today continues to expand. This (35)______many problems, including serious air pollution, lengthy delays, and the greater risks (36) ______accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.

One possible (37)______is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who (38)______ the laws. In addition, drives could be required to pay for using particular routes at different times of the day. This system, (39) ______as “road pricing”, is already being introduced in a number of cities, using a special electronic card (40) ______to windscreen of the car.

Another ways of (41) ______with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the center. Drivers and passengers then use a special bus service for the (42) ______stage of their journey.

Of course, the most important (43) ______is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares (44) _______at an acceptable level.

Điền vào ô 40

A.  joined 

B. fixed

C. built

D. placed