1/...has to be repaired

2/... school will be opened by the local government soon

3/...has been bitten by the dog

6/ ...has to be solved

7/ ... hospital in town will be built

1. This machine has to be repaired.

(câu bị động thì hiện tại đơn, với động từ khuyết thiếu)

2. A new school will be opened by the local government soon.

(câu bị động thì tương lai đơn)

3. Several people have been bitten by the dog.

(câu bị động thì hiện tại hoàn thành)

4. If Tom weren't too short, he could reach the shelf.

(câu điều kiện loại 2)

5. If he had told me his plan, I could have helped him.

(câu đk loại 3)

6. This problem has to be solved.

(giống câu 1)

7. A new hospital in town will be built.

(giống câu 2)