Passive Voice (Interrogative)

__________ the concert __________ (hold) in the stadium last night?

__________ the new regulations __________ (explain) to everyone by now?

__________ the reports __________ (review) when the power went out?

When __________ the results __________ (announce)?

__________ the project __________ (complete) by next week?

What __________ (discuss) at the meeting right now?

__________ the instructions __________ (understand) by all the participants?

Why __________ that old building __________ (demolish) last month?

__________ the software __________ (update) by the time we return?

How __________ the problem __________ (solve) without more resources?