You would need to select text to perform several tasks in Word. For instance, if you want to bold, underline, highlight, Italicize text, etc.
As such, you will need to know how to do so.
To Select Text:
1. Place the pointer of your mouse just before the text you want to select
2. Hold down the left key of your computer mouse
3. Drag the computer mouse (while holding down the left key of your mouse) across the area you want to select
4. Then release the left button
The diagram below shows text that I have selected.
Lesson 21: How to Undo Changes