Choose the option that is the passive form of the sentence.
The security guard opened the gate using his pass.
Answer & explanation
Correct answer: option 1
The correct option that is the passive form of the sentence is The gate was opened by the security guard using his pass.
The other options are incorrect because:
- The gate opened the security guard using his pass is in the active voice.
- The gate was open by the security guard use his pass is grammatically incorrect. The verb "to open" is followed by a past participle, but the word "open" is not a past participle.
- The gate is open by the security guard by using his pass is grammatically incorrect. The preposition "by" should be followed by a noun or a pronoun, but the phrase "by using his pass" is not a noun or a pronoun.