1. exchange labour services for money;

2. You must hand over in exchange a good or service;

3. a double coincidence of wants;

4. spend a lot of time and effort;

5. make mutually satisfactory swaps;

6. a barter economy is wasteful;

7. commodity generally accepted in payment for goods;

8. prices are quoted and accounts are kept;

9. its purchasing power is eroded by inflation;

10. it's usually but not invariably convenient;

11. cut back on other uses;

12. exceeds its cost of production;

13. by collectively agreeing;

14. the survival of token money;

15. society enforces the use of token money;

16. token money is supplemented by IOUmoney;

17. interest-bearing bank accounts

1. I.. learn the French language.

b. don't

2. The trains to London ... from platform 5 every hour.

a. leave

3. Leave me alone. I ... to concentrate. c. am trying

4. People in Italy... a lot of pasta.

C. eat

5. I. about this accident for many years. C)have remembered

6. I... what to do at the moment.

b. don't know

7. Brian ... a suit for work when he has to look smart.

a. wears

8. I... for the letter from my friend from Britain.

a. am waiting

9. Набор слов.напиши в комменте нормально, я сделаю

10. Terry ... a lot of problems at the moment.

c. has

11. Helen ... a new car yet.

c) hasn't bought

12. I.. this sandwich. I'm not hungry.

a. don't want

13. This country ... a lot now.

b. is changing

14. Jack ... alone for many years because he divorced many years ago. b. has been living

15. Robert ... in a bar this summer.

a. is working

16. Tom ... to bed already. He's very tired.

b. has gone

17. ... she ... this kind of music?

b. Does ... like

18. All football matches ... at 3 o'clock. a. start

19. ... you ... at this hotel now?

b. Are... staying

20. ... she ... anything to eat at the moment?

c. Does ... want

1. I'm working. 2. We are working. 3. They don't work. 4. Do you work? -- Yes. 5. Does it work? -"No," I said. He's learning. 6. My brother does not teach. He works. 7. Do you wear glasses? 8. Do you help people? 9. Does he like to read fairy tales? 10a likes to play the violin? 11. My sister doesn't read books. 12. Our grandmother likes to sleep on the diva-ne. 13. Do you like to relax in a chair? 14. We eat and drink in the kitchen. 15. My brother doesn't like to read newspapers. 16. We sleep in the bedroom. 17. My brother sleeps on the couch in the living room. 18. My sister