Fill in the missing word. there are three answers you do not need to use
freelancer permission shift, living, bring up, conclusion, invented, deadline, swapped
sound, bring out, overtime
1. the police came to the ***
that it wasn't the accountant who had stolen the
money.
2.
addresses with the two girls i met on holiday.
does your dad often work
4.susan asked for
to leave early.
5. charles babbage
*** the computer.
6. it is amazing how ann has been able to
four children and work at the same
time. i really admire her.
7. he works as a
from home.
8.
alex has a tough
to meet, so he's been working during the weekend.
9. what does your mum do for a
? где стоит туда нужно поставить слово.)​

Today the word "electronics" is the general usage.
The center of this world is a tiny silicon plate of a few square millimeters, an integrated circuit, or a chip, as it is more commonly known. The integrated circuit is undoubtedly one of the most sophisticated inventions of man, science and technology. As the operation os an integrated circuit depends on microscopic "components", the purity of all materials and the cleanness at the plant they are produced at must be of the highest quality. 
In the past it took scientists and reserchers a whole lifetime to make a few thousand calculations, whereas for a modern computer this task is a matter of a few seconds. At present computers capable of performing billions of operations a second are required. In the next few years engineers will complete the work on computers of above 2 billion operations a second. It will take a few more years to produce a 10-billion operationscomputer. According to some researchers, we are close to what can be regarded as a true physical limit. But other specialists think that photons will make the operation a thousand times faster. This means that in the future it will be possible to expect the appearance of photon computers and that computations will be done by means of light. In a few decades a new age of light may replace the stil youthful electronic age. The race is going on.

1. Some governments have been trying to protect the environment for twenty years.

2. Have you been working at the TV studios since May?

3. Bill has been thinking about getting a new car for months.

4. Lesley has not been living in Meg's flat since last Christmas.

5. You have been eating too much since our holiday in March.

6. We have been looking forward to seeing you for weeks.

7. What have you been doing since last summer?

8. I have not been learning Spanish for very long.

9. Thomas has been writing his History essay since Saturday morning.

10. Have you been waiting for me for hours?