lingling: How do I write my homework on the computer?

daming: First, open a new document. So, use the mouse and click "new document".

lingling: What's the mouse? Is this one?

daming: Yes. Next, you write your homework in the new document. Use the keyboard.

lingling: What should I do next? How can I save the document?

daming: You click "save", and write a name for it.

lingling: Where do I write the name?

daming: Write it in the box. OK, then click "save" again.

daming: Click "print" and "OK".

lingling: Where's the printer?

daming: It's behind you!