Jawaban:

1. she's the most beautiful girl I've ever seen
2. he was the brightest among his peers
3. the Giant sequoia is the most massive extant tree on earth
4. the blue whale is the largest animal known to have ever existed
5. my pp is the biggest in the class
6. I just ripped the most pungent fart ever
7. that thunderclap was the loudest one
8. I'm the tallest person in my family
9. he's blessed with the bluest eyes
10. Jack is the most perverted guy I've ever encountered

Penjelasan:

most/-estadalahsuperlative atau "paling"
most dipakai untuk:

• kata sifat yang jumlah suku katanya di atas 3 (contoh: most retarded)
• kata sifat yang diakhiri dengan bunyi (bukan huruf) konsonan (contoh: most complex)

sisanya pakai -est

semoga membantu