✔ Correct Answer: B. The meeting will have been finished by 5 p.m.

The correct answer to the question “Change into Passive Voice: "They will have finished the meeting by 5 p.m."” is The meeting will have been finished by 5 p.m.. This question belongs to Active/Passive Voice in English. Practice the related questions below to master this topic for your FPSC, PPSC and NTS tests.