2 sentences for 家教 (jiā​jiào)

1. 他非常有家教，为人谦逊有礼。

   tā fēi​cháng yǒu jiā​jiào, wéi​rén qiān​xùn yǒu lǐ.

   He is very well-bred, humble, and polite.

   Source: Dong Chinese Dictionary

2. 他利用周末时间去做家教赚取学费。

   tā lì​yòng zhōu​mò shí​jiān qù zuò jiā​jiào zhuàn​qǔ xué​fèi.

   He uses his weekends to work as a tutor to earn money for his tuition.

   Source: Dong Chinese Dictionary