核心单词（15个）

1、alphabetical

2、correspondence

3、file

4、respectively

5、document

6、chronological

7、evenly

8、squarely

9、memo

10、secretary

11、numeric

12、invoice

13、transaction

14、ascend

15、folder

对话：

A：Please file all these reports for me.

B :Do you want me to file them in alphabetical order?

A :No,please file them according to dates.

B :I'll make copies and file them both ways.

A :Great idea!You are an excellent secretary.

B :Of course i am ,sir.