The verb 'have' can be used as an auxiliary verb when making the present perfect tense.
To make the present perfect: has or have + the past participle.
Answer: Arrogant - Having or revealing an exaggerated sense of one's own importance or abilities
Explanation: Subtle - not obvious
Precociuos - premature
Empathetic - able to understand other people´s feelings
Yes it is, it has a period therefore a complete sentence.
Answer:
The environment challenges him by making him dehydrated and both mentally and physically hurt. “Uncle cautioned him to make the water in his gourd last as long as possible. It was the hardest thing Salva had ever done, taking only tiny sips when his body cried out for huge gulps of thirst-quenching, life-giving water.