3. The gate is painted by my brother.
4. English is spoken all over the world.
5. The letter is written by Tom.
6. Hoa isn't invited by Peter to his party.
7. This room isn't used very often.
8. We are often taken to the zoo by our father at weekends.
9. Milk is used for making butter and cheese.
10. The bottles of milk are brought by the milkman to houses.
Cấu trúc câu bị động thì quá khứ đơn: S + tobe(is,am,are) + P2 + O (by sb)
