8 sentences

1. 操场上有很多学生在跑步。

   cāo chǎng shàng yǒu hěn​duō xué​sheng zài pǎo​bù.

   There are many students running on the playground.

   Source: Dong Chinese Dictionary

2. 曹操是东汉末年的著名政治家。

   Cáo cāo shì Dōng​hàn mò​nián de zhù​míng zhèng​zhì​jiā.

   Cao Cao was a famous statesman at the end of the Eastern Han Dynasty.

   Source: Dong Chinese Dictionary

3. 清晨的校园里，学生们正在操场上做操。

   qīng​chén de xiào​yuán lǐ, xué​sheng men zhèng​zài cāo chǎng shàng zuò​cāo.

   In the early morning, students are doing exercises on the school playground.

   Source: Dong Chinese Dictionary

4. 他操一口流利的英语。

   tā cāo yī kǒu liú​lì de Yīng​yǔ.

   He speaks fluent English.

   Source: Tatoeba

5. 他操着一口厚重的家乡口音。

   tā cāo zhe yī kǒu hòu​zhòng de jiā​xiāng kǒu​yin.

   He speaks with a heavy local accent.

   Source: Dong Chinese Dictionary

6. 她独自一人操持着全家的生计。

   tā dú​zì yī rén cāo chí zhe quán​jiā de shēng​jì.

   She manages the whole family's livelihood all by herself.

   Source: Dong Chinese Dictionary

7. 他决定重操本行，回到学校教书。

   tā jué​dìng chóng cāo běn​háng, huí​dào xué​xiào jiāo​shū.

   He decided to return to his original profession and go back to teaching at school.

   Source: Dong Chinese Dictionary

8. 他手里操着一把短刀。

   tā shǒu lǐ cāo zhe yī bǎ duǎn​dāo.

   He was wielding a short knife.

   Source: Dong Chinese Dictionary