Задание 2. Чтение. Выберите правильный вариант ответа.

A. The Great Wall of China is about ...

• 2. 21,000 km long.

B. At first, the Wall was built to ...

• 1. protect the country.

C. The Wall is built of ...

• 2. different materials.

D. Today the Great Wall is ...

• 1. a popular tourist place.