Odpowiedź:
1 the adress WAS written on a sheet of paper
2 the dress IS made of silk
3 the dog WAS injected yesterday
4 the letter will BE sent soon
6 the helicopter IS piloted by my dad
7 the flowers will BE watered tomorrow
8 the keys WERE lost yesterday
9 the tests ARE written every month \ the TEST is written every month (zależy od kontekstu)
10 the car WAS repaired three days ago
11 the mobile will BE bought next month
12 the tower WAS designed by Eiffel
13 the pictures WERE taken yesterday