New Words:

家 Jiā – family
有 Yǒu – to have/there is/are
口 Kǒu – measure word for counting people in a household
奴儿 Nú er – daughter
几 Jǐ – how many
岁 Suì – year old
了 Le – particle to indicate change
今年 Jīnnián – this year
多大 Duō Dà – how much age

Example:

你今年几岁了
Nǐ jīnnián jǐ suì le？
How old are you this year?

我三十岁了
Wǒ èrshí suì le。
I’m 30 years old.

你儿子几岁了
Nǐ érzi jǐ suì le？
How old is your son?

她今年七岁了
Tā jīnnián qī suì le。
He is seven years old.

坤医生多大了
Kūn yīshēng duō dà le？
How old is Doctor Kun?

她今年四十岁了
Tā jīnnián sìshí suì le。
She is forty years old.

再见！