A.    Read the passage and circle the best option A, B, C or D to complete the passage.
Denmark is one of the most bicycle-friendly countries in the world. Roughly 40 percent of the people in its capital, Copenhagen, (1) _____ to school or work by bicycle.
Why are bikes so popular in Denmark? First of all, the government is worried about (2) _____. Cars pollute the air, and the number of cars is growing. Denmark has a very high tax on cars because the government wants more people to ride bikes instead.
Another reason for the (3) _______of bicycles is that Denmark is a very flat country. The highest place in the country is only 557 feet (170 m), so it is a very easy place to ride a bike. In Copenhagen, there are also special lanes just for (4) _____. Cars must stop when a bike is crossing the road. Some places have special traffic lights to tell drivers that bikes are going to (5) _____ the road.
About 20 percent of people in nearby towns commute to Copenhagen on their bikes. But Denmark wants to double this number. The government is planning to build bicycle “superhighways”. These roads will only be for cyclists. 
1. A. commute    B. travel    C. pass    D. arrive
2. A. polluting    B. polluted    C. pollutions    D. pollution
3. A. popular    B. popularity    C. populated    D. population
4. A. cycles    B. cycle    C. cyclists    D. cyclist
5. A. cross    B. go    C. over    D. make