4 sentences

1. 熊是一种独居动物。

   xióng shì yī​zhǒng dú​jū dòng​wù.

   Bears are solitary animals.

   Source: Tatoeba

2. 我无法忍受独居。

   wǒ wú​fǎ rěn​shòu dú​jū.

   I can't stand to live alone.

   Source: Tatoeba

3. 他晚年独居，从不欢迎来访者。

   tā wǎn​nián dú​jū, cóng​bù huān​yíng lái​fǎng​zhě.

   In the latter years of his life he lived alone and never welcomed visitors.

   Source: UM-Corpus: Education

4. 我从来没有比现在独居更快乐过。

   wǒ cóng​lái méi​yǒu bǐ xiàn​zài dú​jū gèng kuài​lè guo.

   I have never been happier than I am now living alone.

   Source: CCMatrix