Pasa de activa a pasiva y viceversa

2 They were cleaning the office when the manager arrived.
3 People should submit the applications by Friday.
4 The city castle has been recently visited by many tourists.
5 All senior students will take the final exams.
6 The construction will be finished next month.
7 The school principal had greeted all parents when the graduation ceremony began.
8 All the essays are being corrected by Diana.
9 Someone stole Rebecca's bike last night. 10 A dangerous virus has infected my computer.

Ayudaaa por favor

​