Open the brackets using the correct form in the Passive Voice.
1) Sound card (use) by the computer to record and play audio.
2) Iron ore (heat) in the presence of charcoal.
3) Manufacturing (exist) as long as civilizations have required goods.
4) Many years ago factories (build) to produce gunpowder.
5) An electric arc (discover) by Russian engineer V.V. Petrov.
6) Recently there (be) some growth in the number of PhDs granted in computer and physical sciences.
7) Most programs (write) in a high-level language such as FORTRAN or C.
8) In the course of further scientific developments extensive use (make) of modern computing machines and electronic devices.
9) It (provide) by such devices as magnetic discs.
10) The process (know) as hot working.

1) They reflect the history of the country and its cultural and religious traditions.
2)  Americans celebrate Christmas on the 25th of Decem­ber.
3) The 1st of January is not so widely celebrated in the United States as we do it
in Russia.
4) The most important holiday in America is the 4th of July,
The Independence Day.
5) The 4th of July is the day-off and people don't go to work. Other holidays
when people don't go to work are: Martin Luther King's day on the 20th of January, Labour Day on the 7th of September and Thanksgiving on the last Friday of November.
6) It is a big white stone on the shore in Plymouth in Massachusetts, that the pilgrims landed on. It is called «The Plymouth Rock».
7) Halloween is children's most favourite holiday.

Gulliver was born in the large family of a farmer. At school the boy learned well, so his father sent him to the university, for three years.  When the young man left the university, he worked with a doctor and learned the doctor's profession. Gulliver decided to learn navigation, too. After four years he began to work on the ship as a ship’s doctor. One day, when the ship was at the  sea for a long
time, there was a great storm. The ship broke to  pieces and only six people got into a small boat.  The men were
tired and couldn’t find  water. Soon the boat turned over and the men were in the water. Five of them were drowned.
But Gulliver swam well, and when he saw the  shore, he swam to it. He got out of the water and slept on the shore
for  many hours. When Gulliver woke up, he found that he was in a country where very, very small people lived. The name of the country was Lilliput. The little people were afraid of the Man — Mountain, as they named Gulliver. When they saw that Gulliver was a kind man, they let him go free. Gulliver lived in the
country for two years and then came back to England.