1.b
2.d
3.c
4.d
5.a
6.b
100% правильно
1. Several important developments have been brought by engineers in the fields of electric power and mechanics.
2. Analog is being replaced by digital systems
3. Computers are used by engineers to solve complex problems
4. The current motives for investment in robots is difficult to be generalized from the marginal point.
5. The work to squeeze great numbers of circuit elements onto smaller chips are continued by engineers.
1. If Nick hadn't climbed the ladder, he wouldn't have broken his leg.
2. If Mr Davidson had been driving carefully, he would have avoided the accident.
3. If John Smithson had been running faster, he would have won the race.
4. If Chris hadn't been playing with a knife, he wouldn't have cut his finger.
5. If Mary has got a headache, she should take an aspirin.
6. If Mrs Claydon hadn't left fish on the tablet, the cat wouldn't have eaten it.
1)
1. Was
2. Were
3. Was
4. Was
5. Were
6. Were
7. Were
8. Was
9. Were
10. Was
2)
2. Wanted
3. Asked
4. Hated
5. Showed
6. Were talking
7. Was staying
8. Were laughing
1) If people invent new fuel, cars won't polute the air.
2) When John comes, we will go to the park.
3) If he has a lot of money, he will buy a computer.
4) If you exercise more you will feel better.
5) If we are lucky we will go on holiday to the moon one day.