2 sentences

1. 这是我的毕业证书。

   zhè shì wǒ​de bì​yè​zhèng​shū.

   This is my graduation certificate.

   Source: CCMatrix

2. 这是她的毕业证书。

   zhè shì tā de bì​yè​zhèng​shū.

   This is her graduation certificate.

   Source: OpenSubtitles