Ex3.

2. The plants haven't been watered by he.

3. A fantastic party was arranged by George and Sarah.

4. The car hasn't been repaired by the mechanic.

5. The animals are fed twice a day by they.

6. The roof will be fixed by Sam.

7. The new menswear line was launched by Cherry Lane.

8. The red dress was designed by Claire.

9. The children will be etertained by the clown.

10. The puncture has been mended by he.

- Form: 

   + Active: S+V+O+C+A+....

   + Passive: S+(be)+pp+A(p)+(by O)+A(t)....

Ex4.

1. wiill be delivered (hành động sẽ xảy ra trong tương lai)

2. was built (in 1920 -> quá khứ đơn)