They will have opened the new airport by 2026.
The original sentence is in the active voice, Future Perfect tense: "They will have opened the new airport by 2026."
The Future Perfect tense in active voice uses the structure: $Subject + will have + past participle + Object$.
The corresponding passive voice structure is: $Subject (original object) + will have been + past participle + by + agent (original subject)$.
Combining these elements gives the passive sentence: "The new airport will have been opened by 2026."
This matches Option 1.
Change the following from active to passive:
They should be auditing the subsidiary accounts this quarter.
Select the option that expresses the given sentence in passive voice.
Have you placed an order for a cake?
Select the option that expresses the given sentence in active voice.
Walking zones have been demarcated using paints and cones by the municipal corporation.
Select the option that expresses the given sentence in active voice.
All previous ages are far surpassed in knowledge by our age.
Select the option that expresses the given sentence in passive voice.
Give her a 50% raise in salary.
Select the option that expresses the given sentence in passive voice.
The commanding officer ordered the troops to march ahead.