Choose the correct passive voice: "They will have completed the survey by next week."
- A. The survey will have been completed by them by next week. ✓
- B. The survey has been completed by them by next week.
- C. The survey will be completed by them by next week.
- D. The survey will have completed by them by next week.
Correct answer
A. The survey will have been completed by them by next week.
Explanation
Future perfect active becomes future perfect passive: 'will have been completed'.