The air is filled with particles.
The answer is: d. past perfect.
The Past Perfect tense is used to describe an action that happened before another action or a specific time in the past. It is formed with the auxiliary verb <em>had </em>and the past participle form of the verb. For example, "When the woman arrived home, her husband <u>had cooked </u>dinner," which means that the husband cooked dinner before the woman arrived.
The rest of the alternatives are incorrect because the infinitive and irregular forms of a verb are not past tenses by themselves. Finally, the Simple Past is used to refer to finished or completed actions in the past.
Explanation:
Example: Paul looked around furtively
Furtively meaning like he looked around without trying let anyone see him do it or he did it secretly.
Answer: is this the complete question bc these arnt stories
Explanation: