3 sentences

1. 是她促成了这笔交易。

   shì tā cù​chéng le zhè bǐ jiāo​yì.

   She put this deal together.

   Source: OpenSubtitles

2. 双方的共同努力促成了这次合作。

   shuāng​fāng de gòng​tóng nǔ​lì cù​chéng le zhè cì hé​zuò.

   The joint efforts of both parties brought about this cooperation.

   Source: Dong Chinese Dictionary

3. 请您在中间多加周全，促成这桩婚事。

   qǐng nín zài zhōng​jiān duō​jiā zhōu​quán, cù​chéng zhè zhuāng hūn​shì.

   Please help mediate to see this marriage through.

   Source: Dong Chinese Dictionary