18. Which of the following sentences is from a firsthand biography? I wanted to go to the olympics but did not make it. I completed my first concerto when I was fifteen. I joined the dance company in 1995 . I want to tell you about the greatest man who ever lived.

The sentence that is from a firsthand biography is: **"I completed my first concerto when I was fifteen."** **Explanation:** A firsthand biography is written from the perspective of the person whose life is being described, using "I" statements to convey personal experiences and achievements. - **"I completed my first concerto when I was fifteen."** - This sentence clearly reflects a personal achievement and is typical of a firsthand account. The other sentences either describe personal experiences but are less specific about significant life events or are about someone else: - **"I wanted to go to the Olympics but did not make it."** - While personal, it doesn't necessarily indicate a comprehensive biographical account. - **"I joined the dance company in 1995."** - This is also a personal statement but is less detailed compared to completing a concerto at a young age. - **"I want to tell you about the greatest man who ever lived."** - This sentence suggests the speaker is talking about someone else, not providing a firsthand biography of themselves. **Correct Answer:** "I completed my first concerto when I was fifteen."