3 sentences

1. 他给杂志社投了一份稿件。

   tā gěi zá​zhì​shè tóu le yī fèn gǎo​jiàn.

   He submitted a manuscript to the magazine.

   Source: Dong Chinese Dictionary

2. 他在一家著名的杂志社工作。

   tā zài yī jiā zhù​míng de zá​zhì​shè gōng​zuò.

   He works for a famous magazine publisher.

   Source: Dong Chinese Dictionary

3. 他来自国内最大的杂志社之一。

   tā lái​zì guó​nèi zuì dà de zá​zhì​shè zhī yī.

   He's from one of the biggest magazines in this country.

   Source: OpenSubtitles