This question tests your understanding of verb patterns and passive voice in English grammar. The correct structure requires a past participle after "have" to form a causative or passive construction.

The sentence "You should have your visa _____ before it expires" requires the blank to be filled with a verb form that completes the causative/passive structure "have + object + past participle".

Step 1: Identify the sentence structure - "have + your visa + _____" indicates we need the past participle form

Step 2: The verb "extend" in past participle form is "extended"

Step 3: The complete sentence means "You should arrange for your visa to be extended before it expires"

Final Answer: The correct option is "extended"

Related Grammar Concepts

Causative Verbs: Verbs like "have", "get", "make" that indicate someone causes something to happen. The pattern is: have + object + past participle.

Passive Voice: When the subject receives the action rather than performs it. Past participles are essential in forming passive constructions.

Key Formula

Causative Structure: Subject + have/get + object + past participle

Example: I had my car washed. (I caused my car to be washed by someone)