1. We went with our experiments FOR a year. DURING this period of time it became clear that our approach had some disadvantages.
2. Many problems were discussed SINCE the conference and some of them FOR many hours. DURING the discussion different suggestions were made. The conference continued FOR a week.
3. Biology made great progress DURING the second half of the XIX century and FOR some time it was supposed that there is nothing much to be discovered.
4. Man FOR thousands of years has been changing the world to suit his own purposes.
5. Man has been changing the world SINCE ancient times.
6. Our team has been doing plasma research FOR three years.
7. He has been investigating the cell properties SINCE he joined this laboratory.
8. I have been working at the effects of low temperatures on seeds FOR half a year.
9. We have been studying the theory of chromosome hereditary DURING last two years.
10. I have been gathering these data SINCE last winter.
1. Our 2. Her 3. My 4. His 5. Their 6. Your 7. Its 8. Her 9. Our
10. His 11. My, my 12.Her 13. Your 14 Their
1 It's not a good idea to go swimming when you have eaten dinner.
2 Our team have won twelve matches this
season. We could win the league!
3 We're going to lose the match. We haven't a point.
4 _any football boots_(buy)? - незнаю
You'll need them for training on Monday.
5 We've got a spare ticket now. Kim has called me to say she's ill.
<span> 6 I'm not going to the concert. I have seen.</span>
<span>1 (reading)
2 (various)
3
(courageous).
4 (length)
5 (thickness)
6 (self-confident)
7 (strength)
8 (curiousity)
9 (decisive)
10 (restless)
11 (artistic)
12 (dreamers)
3 (proud) </span>
When did he come?
What did she say?
Whom did they see?
How did we do?
When did it begin?
How many did he buy?
What language did they speak?
Whom did she dance with?
How much did we pay?
Why did he go?