Образование Пассивного залога в английском языке - to be + глагол в 3-ей форме.

1) Macbeth was written by Shakespeare between 1603 and 1607.

2) A festival wil be held next month/

3) The telephone was invented by Alexandr Graham Bell.

4) Guided tours will be offered by the company.

5) Her ring is not found by they yet.