This question tests your understanding of verb forms in passive voice constructions, specifically with the causative verb "had".

The sentence is: "I had my binoculars_____ when I was at the stadium."

The correct word to fill in the blank is "stolen".

Concept Explanation:

The structure used here is the causative passive. We use the pattern "have + object + past participle" to say that we arranged for someone else to do something for us, or that something (usually unpleasant) happened to us or our belongings.

Let's break down the sentence:

• Subject (I): The person speaking.
• Verb (had): The causative verb.
• Object (my binoculars): The thing that the action was performed on.
• Blank (_____): This requires the past participle form of the verb "steal", which is "stolen".

The complete sentence, "I had my binoculars stolen when I was at the stadium", means that someone stole the binoculars from you. You did not perform the action of stealing; instead, the action was done to your property.

Why the other options are incorrect:

• "to steal" (infinitive): This form is not used after "had" in this causative structure. It would imply intention, not a completed action that happened to you.
• "stealling" (misspelling of "stealing" - present participle): This is grammatically incorrect. The present participle ("-ing" form) is used in active continuous tenses, not in this passive causative structure.
• "stole" (simple past tense): This is the active, simple past form of the verb. If you used this, it would mean "I stole my own binoculars," which does not make logical sense in this context.

Related Topic: The Causative (Have/Get Something Done)

This is a common structure in English to talk about services we arrange or experiences we undergo. The formula is:

Subject + have/get + object + past participle

Examples:

• "I had my hair cut yesterday." (I asked a barber to do it)
• "She got her car repaired." (She took it to a mechanic)
• "He had his wallet stolen on the bus." (This happened to him)

Key Formula/Structure:

Causative Passive Form: Subject + have/get + object + past participle (V3)

This structure emphasizes that the subject causes the action to be done to the object by someone else, or that the action was experienced by the subject.