Chuyển thành câu bị động giúp mik vs ạ

Công thức - bị động - thì HTHT

(+) S+  has/have + been + V3/ed

(-) S + has/have + not + been + V3/ed

(?) Has/Have + S+ been + V3/ed?

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1. This bouquet of flowers has been bought in Puma shop by my sister.

2. Jenna's wallet has been found.

3. The report has been finished by their team.

4. My exam has been finished for three days.

5. "Transformation" movie has never been seen before.

6. The news has been heard already.

7.  The contract has been signed by the employee.

8. Five concert tickets have been bought by these boys.

9. Computer science has been studied by his brother since April.

10. My cat has been taken care of well by my parents.

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