该组织向其成员分发推广材料。

The organization distributes promotional ___material to its members.

她编写自己所有的教学材料。

She writes all her own teaching ___materials.

在课上，我们使用许多有用和有益的材料：磁带、视频和许多不同的书籍。

During the lesson we use a lot of useful and helpful ___material: tapes, video, and lots of different books.