Select the correct passive form of the given sentence. "I will complete the work tomorrow."

Correct option is B

The correct active/passive voice of the given sentence is (b).
Explain the rules of conversion from active to passive or passive to active with structure in detail.
When converting Simple Future (will + V1) from Active to Passive, use: will be + V3 and introduce the doer with by (if needed).
· Active Voice (future): Subject + will + V1 + Object + (time).
· “I will complete the work tomorrow.”
· Passive Voice (future): Object + will be + V3 + (by + subject) + (time).
· “The work will be completed (by me) tomorrow.”
· This retains tense and meaning, places the focus on the work, and keeps the time adverbial tomorrow at the end naturally.
Structure:
· Active: Subject + will + V1 + Object.
· Passive: Object + will be + V3 (+ by + Subject).
Why other options are incorrect:
· (a) “will have completed” = Future Perfect (wrong tense) and missing be; also incorrect voice structure.
· (c) “shall completed” is ungrammatical; needs be and V3: shall be completed (also person/style mismatch).
· (d) “is completed tomorrow” mixes Present Simple passive with a future time adverbial—tense mismatch.
Example:
Active: “They will deliver the parcel next week.” → Passive: “The parcel will be delivered next week.”
Information booster: In modern usage, will is standard for all persons in future; shall is formal/rare and mostly used with I/We or in legal style.