Choose the option that is the passive form of the sentence.
The security guard opened the gate using his pass.

Correct option is B

The correct passive form of the sentence "The security guard opened the gate using his pass." is "The gate was opened by the security guard using his pass."
· Active Voice- Active voice is a grammatical structure in which the subject of the sentence performs the action expressed by the verb.
· Passive Voice- Passive voice refers to a grammatical construction where the subject of a sentence undergoes an action rather than performing it. In passive voice sentences, the emphasis is on the recipient or object of the action.
· This transformation accurately shifts the focus from the doer (the security guard) to the object of the action (the gate).
· It preserves the means by which the action was performed (using his pass) and uses the past passive form "was opened" to reflect the completed action.
· Example: The door was unlocked by the caretaker using the master key, similarly emphasizing the passive construction with the method included.
· Other options:
· (a) "The gate is open by the security guard by using his pass" and (d) "The gate was open by the security guard use his pass" both contain grammatical errors.