Вопрос по английскому языку:

Преобразуйте в пассивный залог Present Simple:
Example: My sister writes a letter. – A letter is written by my sister. (Present Simple)
1. People in Africa drink a lot of water.
2. Workers built the house in one week.
3. The teacher often speaks to me.
4. The policeman stops Jim.
5. I make cakes in the morning.
6. Mary reads a newspaper at 4 o’clock.
7. The boys play cards.
Помогите пожалуйста