Change the following sentences to Active voice

1. The mail is sorted by the post office workers every day

2. The report will be written by the secretary

3. The package was delivered to her house yesterday morning

4. All of us were surprised by his frank attitude

5. The engineer hasn't been respected very much by the employees

6. The building is being built now by that company

7. Can this bridge be repaired next month?

8. Are many courses in Fermsn given during the summer?