In this English grammar question, a sentence is given in active voice. Select the option that best expresses the same idea in passive voice. Sentence: "I always cook food in olive oil."

Introduction / Context:

This question uses a sentence in simple present tense to describe a general habit. The original sentence says that the speaker always cooks food in olive oil. The goal is to find a passive voice version that preserves this habitual present meaning and puts the food in the subject position.

Given Data / Assumptions:

- Original sentence: "I always cook food in olive oil."

- Subject in the active sentence: "I".

- Object: "food".

- The tense is simple present, and the adverb "always" indicates a regular habit.

- We need a passive sentence that remains in simple present and keeps the idea of a regular action done in olive oil.

Concept / Approach:

For simple present passive, we use "is" or "are" plus the past participle of the main verb. The adverb of frequency usually appears between the auxiliary and the past participle or just after the verb "be". In this case, the subject of the passive sentence will be "food", and the passive verb phrase should be "is always cooked". The phrase "in olive oil" stays at the end of the sentence, and "by me" is used to mention the agent.

Step-by-Step Solution:
Step 1: Identify subject, verb, and object. Subject: I. Verb: cook. Object: food. Adverb: always. Extra phrase: in olive oil. Step 2: Move "food" into the subject position for the passive sentence. Step 3: Use "is cooked" for singular "food" in simple present passive and place "always" in a natural position as "is always cooked". Step 4: Keep the phrase "in olive oil" at the end. Step 5: Add "by me" to show who performs the action, then check the final sentence for correct tense and meaning.

Verification / Alternative check:

The sentence "Food is always cooked in olive oil by me." clearly expresses a general habit. It uses simple present passive "is always cooked", retains the adverb of frequency, and keeps the prepositional phrase "in olive oil". The meaning matches the original, but the focus is now on "food" instead of the speaker.

Why Other Options Are Wrong:

Some choices change the tense to present perfect or past, which no longer reflects a general present habit. Other options misplace the adverb or use incorrect combinations such as "olive oil is always cooking food", which wrongly makes olive oil the subject that performs the action. A few sentences use unusual or awkward word order that sounds unnatural in standard English. These differences show that those options do not present a correct passive version of the original sentence.

Common Pitfalls:

Students often confuse where to place adverbs like "always" in passive constructions, or they forget to include the auxiliary "be". Another mistake is to take phrases like "in olive oil" and place them in the middle of the sentence where they break the natural rhythm. Some learners also overuse perfect tenses even when they are not needed. Remembering the simple pattern "subject plus is or are plus adverb plus past participle" helps produce correct sentences.

Final Answer:

The correct passive voice sentence is "Food is always cooked in olive oil by me."