a. The goods which they need are essential
b. The school and hospitals they provide are essential
c. the goods which he buys are valuable
d. The money which people earn buys essential commodities
e. The goods and services which people produce are very useful
f. the work which we do is called economic activity
g. the work which people do provide them with money
h. The economi activities which people undertake make up the economic system
1.
1. up 2. out 3. out 4. off 5. up 6. in 7. out 8. out
2.
1. I get on really well with my older brother.
2. Yesterday I had to stay on to talk to my teacher.
3. The weather’s bad, so our teacher’s put off the football match.
4. Everyone says I take after my father but I think I’m more like my mother.
5. In class yesterday, I had to give out the textbooks to everyone.
6. My sister went through a difficult time when she was ill as a child.
7. The boys in the school team used to pick on me because I was the smallest in the team.
8. We haven’t brought many sandwiches for the picnic, so we’ll just have to fill up on fruit.
3.
1. My mum’s made an arrangement to talk to my teacher tomorrow.
2. I’ve got a lot of preparations to do, to get everything ready for my holiday.
3. I accidentally phoned my brother instead of my mum!
4. The garden was in complete darkness, and I fell over my bike lying on the path.
5. My grandma’s going to the hospital for some treatments on Monday.
6. There was a long family discussion last night about where to go on holiday.
7. Reading a lot of science fiction isn’t necessary a bad thing.
8. My grandfather has an amazing collection of old stamps.
4.
Sonia: Hi Alice: Where are you going now?
Alice: Hi Sonia. Tom just invited me to go round
to his house. Do you want to come with me?
Sonia: Great, thanks! Who else will go?
Alice: I’m not sure. I was studying in the library when I
saw him, so I was too busy to ask him.
Sonia: Do we need to take anything with us?
Alice: No, Tom says his mum has already made some
food for everyone!
Sonia: Great!
5.
1. It’s at least six years as our neighbours came to live next door.
2. I don’t play football now, but I used to play a lot when I was a child.
3. My brother isn’t quite as tall as our dad.
4. I’ve had rather a busy day that I’m really tired now.
5. Barry wasn't able to meet us in town yesterday. He had to stay at home and study.
6. I’ve never been to California, but it sounds fantastic!
7. My cousin Paul, who lives in the next street, plays video games all the time.
8. This laptop is the most expensive thing I’ve ever bought!
6. Complete the sentences with the correct form of the verbs in brackets.
1. Who are you waiting for now?
2. I would further study maths this year.
It’s quite difficult!
3. We have just got back from our holiday in the US.
4. I saw John while I was cycling home.
5. We had been living in London for two years before we came here.
6. Don’t take the main road into town today. They are repairing the road.
7. My brother wasn't able to find a job in a bank last year.
8. Sorry, but I won't be able to come to the concert with you tomorrow.
Объяснение:
a. The goods which they need are essential.
b. The schools and hospitals which they provide are essential.
c. The goods which he buys are valuable.
d. The money which people earn buys essential commodities.
e. The goods and services which people produce are very useful.
f. The work which is we do called economic activity.
g. The work which people do provide them with money.
h. The economic activities which people undertake make up the economic system.