4 sentences

1. 她真的是高中生吗？

   tā zhēn​de shì gāo​zhōng​shēng ma?

   Is she really a high school student?

   Source: OpenSubtitles

2. 难怪高中生经常感到疏远。

   nán​guài gāo​zhōng​shēng jīng​cháng gǎn dào shū​yuǎn.

   It's no wonder high school students often feel alienated.

   Source: CCMatrix

3. 他不是个高中生。

   tā bù​shì ge gāo​zhōng​shēng.

   He is not a high school student.

   Source: Tatoeba

4. 我是个高中生。

   wǒ shì ge gāo​zhōng​shēng.

   I'm a high school student.

   Source: OpenSubtitles