Nowadays an integrated circuit is the main component of everyday device.
Some researchers think that we are close to a physical limit in increasing computer operation system.
. In many countries scientists interested in electricity wanted to find out whether it could be used for a long distance communication.
Communication satellites used by all countries make intercontinental television transmission possible.
Wind and solar energies available throughout the earth must be used for useful purposes.
By the end of the 20-th century a new age of light may replace the still youthful electronic age.
Объяснение:
1. Great Britain doesn’t consist of England, Scotland, Wales and Northern Ireland
Which countries does Great Britain consist?
Does Great Britain consist of England, Scotland, Wales and Northern Ireland?
2. They don’t like to compromise
Why do they not like to compromise?
Do they like to compromise?
3. Their traditions aren’t more colorful and exciting
Whose are traditions colorful and exciting?
Are their traditions more colorful and exciting?
4. The Welsh don’t wear proudly their national dress on holidays
When do The Welsh wear proudly their national dress?
Do The Welsh wear proudly their national dress on holidays?
5. But these statements can’t be universal
Why do these statements can’t be universal?
Do these statements can be universal?
1. The plane __leaves__in twenty minutes.
2. If you follow this diet, you_will lose_ some weight.
3. He _ is writing__a new book this summer.
4. I __met__Helen in the morning. (now it is evening)
5. We __have spoken__ to the Dean in the morning. (it is still morning)
6. He __was having__ breakfast when he heard a loud noise in the hall.
7. They _have been building__ this house since April and there is still much work to do.
8. He was late for the conference because he _had missed__ the 7 o'clock train.
9. I _will be waiting__for you at the restaurant at 6 tomorrow.
10. They _will have decorated__the room by the time you come home.
11. She _had been working__ at school for ten years before she met James.
12. Tom __will have been teaching___History for ten years by next month.