3 sentences

1. 这些费用一概由公司承担。

   zhè​xiē fèi​yòng yī​gài yóu gōng​sī chéng​dān.

   All these expenses are to be borne by the company.

   Source: Dong Chinese Dictionary

2. 对过往的那些错误，我们一概不问。

   duì guò​wǎng de nà​xiē cuò​wù, wǒ​men yī​gài bù​wèn.

   We will not look into any of those past mistakes.

   Source: Dong Chinese Dictionary

3. 他整天只顾着工作，对家里的事一概不问。

   tā zhěng​tiān zhǐ gù zhe gōng​zuò, duì jiā​lǐ de shì yī​gài bù​wèn.

   He is busy with work all day and completely ignores everything at home.

   Source: Dong Chinese Dictionary