Odpowiedź:
1 Should you feed the birds in winter?
2 the attic was so poor we couldn't clean it on a weekend.
3 their hamster is certainly sick because they took him to the vet.
4You should turn off the lights when you leave the room.
1 Should one feed birds in winter?
2 The attic was so dirty that we couldn't tidy it up at the weekend.
3 Their hamster must be ill, because they have taken it to a vet.
4 You should switch off the lights when you leave the room.
