4 sentences

1. 我买了一刀宣纸。

   wǒ mǎi le yī dāo xuān​zhǐ.

   I bought a stack of Xuan paper.

   Source: Dong Chinese Dictionary

2. 他拿起大笔，在宣纸上挥洒自如。

   tā ná​qǐ dà​bǐ, zài xuān​zhǐ shàng huī​sǎ​zì​rú.

   He picked up a large brush and painted freely on the rice paper.

   Source: Dong Chinese Dictionary

3. 他提笔在宣纸上书了一个大大的“龙”字。

   tā tí​bǐ zài xuān​zhǐ shàng shū le yī gè dà dà de“ lóng” zì.

   He picked up a brush and wrote a large character 'Dragon' on rice paper.

   Source: Dong Chinese Dictionary

4. 他刚写完这幅字，宣纸上的墨沈还没干透。

   tā gāng xiě​wán zhè fú zì, xuān​zhǐ shàng de mò shěn hái méi gān tòu.

   He just finished this calligraphy, and the ink on the rice paper isn't dry yet.

   Source: Dong Chinese Dictionary