Completa cada frase utilizando la forma verbal correcta
Bicycles were introduced in the 19th century and now number approximately one billion worldwide. They are the principal means of transportation in many parts of the world.
Cycling is widely regarded as a very effective and efficient mode of transportation optimal for short to moderate distances.
Practica tus habilidades de escritura debatiendo las siguientes cuestiones
- Are you into cycling? Why ? Why not?
- What does the World Health Organization say about cycling? Do you agree?
- What makes cycling a popular form of exercise?