Реши

Давай вместе разберёмся с этим упражнением. Нам нужно вставить правильную форму глаголов should, can или could в предложения.

1. My brother could swim really well now, but he couldn't when he was 10.
2. I think you shouldn't waste so much time playing videogames every afternoon.
3. That girl can't be Susan’s sister; she’s much older than her.
4. Could you help me with my homework, mum?
5. Carol could play the piano better when she was younger; now she practises very little.
6. We should clean up the mess before mum comes home.
7. Could you walk the dog for me, Walter? I’m really tired.
8. You should pay more attention to your teachers, Dan!
9. Tom couldn't use a calculator when he was 6! He was very clever.
10. Twenty years ago trains couldn't go as fast as today.

Обрати внимание, что в прошедшем времени мы используем "could" и "couldn't" для выражения способности в прошлом, а "should" и "shouldn't" для советов или рекомендаций. Проверь, правильно ли мы все сделали.