file|files

我把我的作业保存在一个电脑文件里。

I saved my homework in a computer ___file.

你能把这个文件发邮件给我吗？

Can you email this ___file to me?

老师让我们打开课本文件。

The teacher asked us to open the textbook ___file.

学校为每个学生都建有一份档案。

The school keeps a ___file on every student.

学校为所有学生保存档案。

The school keeps ___files on all its students.

我想我把文件落在客厅桌子附近了。

I think I've left the ___file near the table in the drawing room.