1. You…(should have/shouldn’t have/could have) tried to fix the window yourself. You might have fallen out and broken your neck.
2. The party was awesome! You… (could have/would have/should have) come!
3. If I hadn’t spilt the coffee on my trousers I (should have/ would have/ wouldn’t have) to change.
4. I… (wouldn’t have/ could have/ shouldn’t have) written the report today but I forgot.
5. We … (should have/ could have/ would have) gone on a picnic if it hadn’t rained.
6. I… (shouldn’t have/ couldn’t have/ could have) climbed higher if I hadn’t been so tired.
7. You didn't believe me, but I was telling the truth. You... (shouldn’t have/ would have/ should have) believed me.
8. If he hadn’t shouted at his workers they (shouldn’t have/ would have/ wouldn’t have) quit.
9. I've got a terrible headache. I... (should have/ could have/ shouldn’t have) drunk so much wine at the wedding!
10. If you had gone to bed earlier yesterday you…(would have/ wouldn’t have/ could have) overslept.
1) the southeast of england is well known for its flat plains, where lots of farms are situated.
2) valleys and meadows of scotland always attract a lot of tourists.
3) green henges( живая изгородь вроде-бы так переводится) in england are separating fields.
4) english scenery is famous for its green henges and green fields
5) i admire of people, which are travelling, discovering new lands and exploring them.
6) my dad has already been in the norhern ireland, but hasn't seen another parts of greatvbritain yet.
7) famous resort towns of england are situated in the southeast.
решение. 1. ri=2*r; rii=r/2; ri/rii=4; не надо ни о какой площади сечения говорить. два куска проволоки содинили последовательно, получили ri=2*r; два куска той же проволоки соединили параллельно, получили rii=r/2; ну, а теперь раздели первое на второе!
а теперь общий случай: ri=r*n; rii=r/n; ri/rii=n^2; кусок проволоки разрезали на n одинаковых кусков. сначала эти куски соединяют последовательно: ri=r*n; затем соединяют параллельно rii=r/n; ну и дели первое на второе и делай выводы.