This is a test of commonsense. Complete the next sentence:

How to sharpen a pencil
Try using an electric pencil sharpener.
An electrical pencil sharpener will create a pencil that makes a very neat line. Push the pencil into the hole in the sharpener.
The sharpener will make a whirring sound as it sharpens the pencil. A downside of electric pencil sharpeners can be irregular sharpening.