`1` Shaun While was born in San Diego.

`-` Trích: dòng `2`

`2` Yes, he did

`-` Dựa vào dòng `3`: 

`-` He started competing when we was thirteen and turned professinal

`3` He has won many gold medals in the X-games

`-` Trích: dòng `4`

`-` Although he still young he has already won many gold medals in the X-games

`4` Because the writer loves extreme sports and he shows us exactly what a young person can do.

`-` Trích: dòng `6`, `7`

$1.$ Shaun While was born in San Diego, California.

- Câu thứ $2$ của đoạn văn: "Shaun While was born in San Diego, California".

$2.$ No, he didn't.

- Câu thứ $3$ của đoạn văn: "He started competing when he was thirteen and turned professional when he was seventeen".

- Chứng tỏ Shaun While chỉ mới bắt đầu thi đấu khi $13$ tuổi và đến tận năm $17$ tuổi ông mới trở nên chuyên nghiệp.

$3.$ Yes, he has.

- Câu thứ $4$ của đoạn văn: "Although he is still young he has already won many gold medals in the X-game".

$4.$ Because he/ she loves sport and Shaun shows them exactly what a young person can do.

- Câu thứ $7$ của đoạn văn.