「你幾歲？」「我十六歲。」

"How old are you?" "I'm sixteen."

Source: Tatoeba

Sentence Composition

=1 你 nǐ you (informal, as opposed to courteous 您 nín)
=1 你 nǐ you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)
2 幾歲 jǐsuì how old are you? (familiar, or to a child)
3 我 wǒ
  1. I
  2. me
  3. my
4 十六 shíliù
  1. sixteen
  2. 16
5 歲 suì
  1. classifier for years (of age)
  2. year
  3. year (of crop harvests)