Переделать предложения в пассивный залог.

1. This secret must not be revealed to anyone by you.

2. Every day fresh fruit and vegetables are brought to our restaurant by us.

3. A new sports centre will be built in my city by them

4. The rooms had been cleaned by 10:30 by them

5.The exercise has been explained by teacher twice.

6. Marian was taken to the theatre by them