Цель: Понять
Прежде всего, давайте скорректируем слова во всех строках с пропусками, чтобы они соответствовали содержанию текста:
A bicycle
A bicycle is a two-wheeled machine that is pedaled by the rider's feet. People HAVE BEEN RIDING bikes for hundreds of years. Historians disagree about the invention of the bicycle. Some historians think that Leonardo da Vinci MADE a sketch of a bicycle in 1492. The first two-wheeled rider-propelled machine WAS INVENTED by Baron Karl von Drais de Sauerbrun of Germany. In 1817 he rode it for 14 km. The frame was made of wood and this bike didn't have pedals. Nowadays there are different kinds of bikes. The mountain bicycle is used for riding on rough roads. It has MORE than 10 speeds, wide tyres, and strong wheels.
Итак, исправленный текст будет выглядеть следующим образом:
A bicycle
A bicycle is a two-wheeled machine that is pedaled by the rider's feet. People have been riding bikes for hundreds of years. Historians disagree about the invention of the bicycle. Some historians think that Leonardo da Vinci made a sketch of a bicycle in 1492. The first two-wheeled rider-propelled machine was invented by Baron Karl von Drais de Sauerbrun of Germany. In 1817 he rode it for 14 km. The frame was made of wood and this bike didn't have pedals. Nowadays there are different kinds of bikes. The mountain bicycle is used for riding on rough roads. It has more than 10 speeds, wide tyres, and strong wheels.