Complete the letter with don't have to or mustn't and the verbs in the box. Then listen and check.
dance ; bring ; speak ; wear ; forget
Dear Students
The school disco is this Friday at 7 pm.
Please remember that you to ask your
parents for permission. They to your teacher (it's not necessary - just sign the form). You
school uniform but you must wear suitable clothing. Also, you friends from other schools - they aren't allowed
in the school Finally, don't forget -you , but it's much more fun if you do!!
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Я не уверена, что переводить нужно было именно так. .-.
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.