How did your grandparents go to work when they were young? By bike, I'm sure. In the 1960s and 1970s, 1 there were many bikes running on the street , we call China " the kingdom of bicycle ". I think 2 all those bikes, "EaBa" bikes were the most popular ones. But now most bicycles disappear,3 " ErBa " bikes. People4 to use these heavy vehicles, though bikes don't cause pollution. The cars and the shared -bikes are on the stage of Chinese people's life. They are more5 and faster.
To our surprise ,"ErBa " bikes become very popular in the countryside of South China. People living there grow bananas but they have6 carrying bananas down the hills. People don't have so much money to buy trucks (卡车), and the roads are in bad7 . Then they find " ErBa " bikes have a lot of8 , for example, the bikes don' t need energy, these bikes can carry about 150 kg bananas and it's easy to ride on their rough(不平整的) roads. Their prices are9 .This kind of bike costs only a little money. With " ErBa " bikes, people can feed their families. But it's dangerous for young people to rush down the hills on their bikes. Why don't they 10 to keep safe ? Wearing helmets, I think, is also necessary.