3 sentences

1. 今天是农历八月初二。

   jīn​tiān shì nóng​lì Bā​yuè chū'èr.

   Today is the second day of the eighth month of the lunar calendar.

   Source: Dong Chinese Dictionary

2. 他初二那年开始练习书法。

   tā chū'èr nà nián kāi​shǐ liàn​xí shū​fǎ.

   He began practicing calligraphy in the second year of junior high school.

   Source: Dong Chinese Dictionary

3. 大年初二，家里的人都要回娘家。

   dà​nián chū'èr, jiā​lǐ de rén dōu yào huí niáng​jiā.

   On the second day of the Lunar New Year, married women return to their parents' homes.

   Source: Dong Chinese Dictionary