3 sentences

1. 报纸变成他们的教科书。

   bào​zhǐ biàn​chéng tā​men de jiào​kē​shū.

   Newspapers became their textbooks.

   Source: CCMatrix

2. 这本教科书是用简单的英语写的。

   zhè běn jiào​kē​shū shì yòng jiǎn​dān de yīng​yǔ xiě de.

   This textbook is written in simple English.

   Source: Tatoeba

3. 我的婚姻是一个教科书式的例子，说明为什么相容性比化学更重要。

   wǒ​de hūn​yīn shì yī​ge jiào​kē​shū​shì de lì​zi, shuō míng wèi​shén​me xiāng​róng​xìng bǐ huà​xué gèng zhòng​yào.

   My marriage is a textbook example of why compatibility is more important than chemistry.

   Source: CCMatrix