3 sentences

1. 谁是合作社的代表？

   shéi shì hé​zuò​shè de dài​biǎo?

   Who is the representative of the cooperative?

   Source: OpenSubtitles

2. 她是这家信用合作社的资深社员。

   tā shì zhè jiā xìn​yòng hé​zuò​shè de zī​shēn shè​yuán.

   She is a senior member of this credit union.

   Source: Dong Chinese Dictionary

3. 这里的农民自发组建了一家供销合作社。

   zhè​lǐ de nóng​mín zì​fā zǔ​jiàn le yī jiā gōng​xiāo hé​zuò​shè.

   The local farmers spontaneously set up a supply and marketing cooperative.

   Source: Dong Chinese Dictionary