Complete the sentences from thequestionnaire. Then answer questionsa-e.1 You — tell an adult about it.2 You — study and help people.3 People - cheat.4 You — be noisy in class.a Which verb do we use for rules andstrong obligations?b Which verb do we use for advice?c Which verb means you are notallowed to?d Do we use to after must and should?e Do we add an -s in the third personsingular forms of must and should?​

а. must, b. should, c. must, c. are not permitted to

Many countries have a network of railways to help transport different types of products. The earliest system was in Ancient Greece in 600 BC. Later rail inks were built to connect short distances. In the 19th century, this changed very much. Many countries developed their own network. They had private links between different towns with Germany and Britain. Britain had the best links. These links allowed carrying heavy goods such as coal, iron, ore, and wood. Building a railway was a hard work for labourers. Railways are very expensive to construct but important to transport raw materials and such goods as textiles quickly and cheaply.

In the early 19th century, the first passengers travelled on the railways with horse-drawn carriages. From 1840-1850 Britain was connected by railways and used steam engine to pull carriages.

Many countries have a network of railways to help transport different types of products. The earliest system was in Ancient Greece in 600 BC. Later rail inks were built to connect short distances. In the 19th century, this changed very much. Many countries developed their own network. They had private links between different towns with Germany and Britain. Britain had the best links. These links allowed carrying heavy goods such as coal, iron, ore, and wood. Building a railway was a hard work for labourers. Railways are very expensive to construct but important to transport raw materials and such goods as textiles quickly and cheaply.

In the early 19th century, the first passengers travelled on the railways with horse-drawn carriages. From 1840-1850 Britain was connected by railways and used steam engine to pull carriages.