Exercise 3. Заполните пропуски, используя глаголы в Present, Past, Future Perfect:

1. How many examinations … you … this summer (to pass) ?2. The students … their work by the evening (to finish). 3. All students whom we … to the lecture were present (to invite). 4. By the end of this month they … a new hostel (to built). 5. The new teacher of History … this month (to arrive). 6. He went into the street and remembered that he … the key on the table (to leave). 7. They … many books before they found a new method of using the energy (to read). 8. The schoolchildren of the tenth form … many books of Pushkin from the library (to take). 9. They … only two kilometers when the thunderstorm broke out (to walk). 10. By this time next year my brother … from the university (to graduate).

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1. In the simplest (превосходная) account the costs are divided into "variable" and "fixed"
2. Double-entry is the most accurate (превосходная) method of book-keeping
3. Before the last (предельная) war less than half (сравнительная) the beef consumed in the UK was produced at home
1. В простейшем отчёте расходы делятся на "переменные" и "постоянные".
2. Двойная запись является наиболее точным методом бухгалтерского учета.
3. Перед последней войны менее половины говядины, потребляемой в  Великобритании, производилось внутри страны.

The Answer to the first question: This term means the system that performs certaint tasks by machines only. Also this term is used to determine the system that operates without humans. The Answer to the second question: The most familiar example of automation given in the text is an assembly plant for automobiles and other complex devices. The Answer to the third question: The first step on the way of automation was a mechanization. The Answer to the fourth question: The first robots were designed for increasing speed of work at plants and making production cheaper and more profitable. The Answer to the fifth question: The first industry that adopted widely the automation was car industry. The Answer to the sixth question: The main thing of feedback principle is that this sort of automation can correct itself due to conditions. The easiest example is a climate control in a common flat. If the temperature in the room hotter than it is necessary the fan starts working and it corrects the temptreture in the room, until again it becomes hotter. The Answer to the seventh question: The first abbreviation CAM stands for computer aided manufacture The second abbreviation CAD stands for computer aided design. The answer to the eighth question: FMS stands for flexible manufacturing system. The answer to the ninth answer: More or less all industries in the world use automation technology. An Intensity depends on many options such as industry, the development of the country, and etc. I hope I have helped you. Sorry if I have made mistakes somewhere. I only learn English. Good bye.