· How old are you?

· 你多大了?

· He is ten years old.

· 10岁了。

· Justin Bieber is twenty.

· Justin Bieber20岁了。

· She is thirty years old.

· 她30岁了。

· Brad Pitt is forty.

· Brad Pitt 40岁了。

· The President is fifty-three years old.

· 总统53岁了。

· Bill Gates is sixty.

· Bill Gates60岁了。

· They are seventy years old.

· 他们70岁了。

· He is eighty years old.

· 他80岁了。

· They are ninety.

· 他们90岁了。

· They are one hundred years old.

· 他们100岁了。

· How old are you?

你多大了?