Переделайте в пассивный залог:
The men will paint the house.
Her son gave her flowers as a present.
The mother tells stories to the children every day.
You must do three exercise now.
He should send the letters tomorrow.
Ann has written the test.
Sam is showing them photos now.

Ответ:

1. The house will be painted by the men.

2. Flowers were given as a present to her by her son.

3. Stories are told to the children every day by the mother.

4. Three exercise must be done now by you.

5. The letters should be sent tomorrow by him.

6. The test has been written by Ann.

7. Photos are being shown them now by Sam.