Select the correct passive form of the given sentence.
"The director should announce the results today."

Correct option is B

The correct passive voice of the given sentence is (b) The results should be announced today.
Explain the rules of conversion:
· With modal auxiliaries (should, can, may, will, must), the passive structure is: Object + modal + be + past participle (V3) (+ by + agent).
· Active: Subject (The director) + modal (should) + V1 (announce) + Object (the results) + time (today).
· Passive: Object (The results) + modal (should) + be + V3 (announced) + time (today) (+ by the director).
· Often, the agent is omitted if obvious or unnecessary.
· Structure:
· Active voice: Subject + modal + V1 + object + (time).
· Passive voice: Object + modal + be + V3 + (by + subject) + (time).
· Why others are incorrect:
· (a) “should being announced” — wrong form; after a modal use be + V3.
· (c) “should be announce” — missing past participle; should be announced.
· (d) “should have been announced” — perfect passive suggests already done earlier; it changes the meaning/time.