Правильный ответ всех предложений с переводом

Конечно, давай вместе разберёмся с этим упражнением. Нужно заполнить предложения, используя "couldn't" или "couldn't have" с предложенными глаголами в правильной форме. Вот правильные ответы:

1. I couldn't live in a big city. I'd hate it.
2. We had a really good holiday. It couldn't have been better.
3. I couldn't wear that hat. I'd look silly and people would laugh at me.
4. We managed to find the restaurant you recommended, but we couldn't have done it without the map that you drew for us.
5. Paul has to get up at 4 o'clock every morning. I don't know how he does it. I couldn't get up at that time every day.
6. The staff at the hotel were really nice when we stayed there last summer. They couldn't have been more helpful.
7. A: I tried to phone you last week. We had a party and I wanted to invite you. B: That was nice of you, but I couldn't have come anyway. I was away all last week.

Это упражнение помогает понять использование модальных глаголов в прошедшем времени для выражения невозможности или гипотетической невозможности в прошлом.