Odpowiedź:
1. Two magazines have been bought.
2. Gravity was discovered by Isaac Newton.
3. This website is visited by millions of people every day
4. The living room will be cleaned by Sara next Saturday
5. My new speakers weren't used yesterday.
6. A lot of letters are written by this company every day.
7. A dinosaur egg has been found by an explorer
8. The god was taken for a walk two hour ago by Tom
9. This room isn't cleaned very often.
10. The room was painted white
11. The car will be washed by Jack tommorow
12. The invitation has been sent by Tom.
13. This cake will be eaten next weekend.
Wyjaśnienie: