Составьте альтернативный, общий, разделительный и специальный вопросы на языке к предложению: people learn foreign languages for different reasons.

1). Общий - Do people learn foreign languages for different reasons?
2). Альтернативный - Do people learn foreign languages for different reasons or only for one reason - become cleverer?
3). Разделительный - People learn foreign languages for different reasons, don't they?
4). Специальный - Why do people learn foreign languages?

Archimedes. Why in the first place was the ancient Greek scientist? First of all, because he is one of the greatest mathematicians of all times, close he came to the calculation of the number of "PI". Today all students and students of the daily study and enjoy the discoveries of the Greek. Also Archimedes was famous for the invention of many useful machines. Among these are the siege guns, and mirrors, поджигающие sails on the Roman ships by focusing sunlight. Archimedes made the first theorist of mechanics. For example, he presented the complete theory of the lever, applying it in practice. Also, scientists have developed a Archimedes screw (screw), with the help of which вычерпывается water and the present day. The primacy of the inventor of merit - all of it was opened more than two thousand years ago, when there were no computers, no technology available today, the inventors. Archimedes, perhaps, he studied in the libraries of Alexandria, but most of his knowledge was acquired independently.

Cobras are among the best-known snakes. It's a reptile. It is very dangerous, because it has poison in the teeth. They say, a large king cobra has enough poison in one bite to kill 20 human beings or an elephant. 
The Cobra is famous for its hood, which is formed when a snake gets angry and is ready to attack. 
Cobras can be found mainly in Africa and Asia. They typically live in hot, tropical areas.They like to spend time underground, under rocks and in trees.
They come in different colours: yellow, brown and black. Cobras eatmice, rats, rabbits, lizards, snakes, eggs and birds, but they can easely live without eating for days or months. 
Like other snakes, cobras  do not hear, they are death, but they cansense the ground vibrations.
Cobras lay eggs. They build nests for their eggs and guard them very carefully until babies are born.
It's interesting to know that cobras smell their prey using their tongue.