4 sentences

1. 房子前面有一株老松树。

   fáng​zi qián​miàn yǒu yī zhū lǎo sōng​shù.

   There is an old pine tree in front of the house.

   Source: UM-Corpus: Education

2. 我会成为一棵非常好看的松树！

   wǒ huì chéng​wéi yī kē fēi​cháng hǎo​kàn de sōng​shù!

   I'd make a very handsome pine tree!

   Source: OpenSubtitles

3. 突然，一只松鼠跑上松树的树干。

   tū​rán, yī zhī sōng​shǔ pǎo shàng sōng​shù de shù​gàn.

   Suddenly a squirrel ran up the trunk of a pine tree.

   Source: CCMatrix

4. 那棵树实际上是冷杉，不是松树。

   nà kē shù shí​jì​shang shì lěng​shān, bù​shì sōng​shù.

   That tree is actually a fir, not a pine.

   Source: UM-Corpus: News