6 sentences

1. 他在一家律师事务所实习。

   tā zài yī jiā lǜ​shī shì​wù​suǒ shí​xí.

   He is interning at a law firm.

   Source: Dong Chinese Dictionary

2. 他在一家律师事务所工作。

   tā zài yī jiā lǜ​shī shì​wù​suǒ gōng​zuò.

   He works in a law firm.

   Source: Dong Chinese Dictionary

3. 他是这家律师事务所的高级合伙人。

   tā shì zhè jiā lǜ​shī shì​wù​suǒ de gāo​jí hé​huǒ​rén.

   He is a senior partner at this law firm.

   Source: Dong Chinese Dictionary

4. 他在会计师事务所从事税务咨询工作。

   tā zài kuài​jì​shī shì​wù​suǒ cóng​shì shuì​wù zī​xún gōng​zuò.

   He provides tax consultancy services at an accounting firm.

   Source: Dong Chinese Dictionary

5. 她在一家事务所当小妹，负责跑腿和打杂。

   tā zài yī jiā shì​wù​suǒ dāng xiǎo​mèi, fù​zé pǎo​tuǐ hé dǎ​zá.

   She works as an office girl at a firm, handling errands and odd jobs.

   Source: Dong Chinese Dictionary

6. 公司每年都会聘请独立的会计师事务所进行审计。

   gōng​sī měi nián dōu huì pìn​qǐng dú​lì de kuài​jì​shī shì​wù​suǒ jìn​xíng shěn​jì.

   The company hires an independent accounting firm to perform an audit every year.

   Source: Dong Chinese Dictionary