Today we're going to discuss the history of the postal service. Before the 19th century, letters were usually delivered by private messengers, which was slow and costly. In 1840, Britain introduced the Penny Post, which allowed a letter to be sent anywhere in the country for just one penny. This was a revolutionary idea because it shifted the cost from the receiver to the sender. The system was so successful that other countries soon followed. However, it wasn't until the late 19th century that mail began to be sorted by machines, which greatly increased efficiency.
❓ 便士邮政之所以具有革命性，主要原因是什么？
A. A. 这是世界上第一个邮政服务。
B. B. 它使寄信更加便宜，并将支付责任转移了。
C. C. 它引入了邮件分拣机器。
D. D. 它使得信件能够国际寄送。
✅ 正确答案
B. It made sending letters cheaper and shifted the payment responsibility.