Avoid vague pronouns

Pronouns replace or refer to a specific noun. Make sure that your pronouns aren't vague or ambiguous.

Examples:

• When the truck stopped next to the car, it was slightly further ahead than the other vehicle (does "it" refer to the truck or the car?)
• The dog chased the cat until it hid under the couch (does "it" refer to the dog or the cat?)
• My birthday is next week, which is exciting (what is exciting, your birthday or that it is next week?).

For more information, please see Vague Pronouns (YouTube video).