Odpowiedź:
3.
1. should wear
2. should prevent injures
3.should close the window
4. shoul practise
5. should se a doktor
6. shoud go to bed
4.
1. Could sam swim when he was five? Yes, he could
Can sam swim now? Yes, he can
2. Could sam ski when he was five? No, he couldn't
Can sam ski now? No he can't
3. Could sam play chess when he was five? No, he couldn't
Can sam play chess now? No he can't
Wyjaśnienie:
