1. Complaint
2. Apologize
3. Compensation
4. Experiment
5. Follow-up
A statement that something is wrong or not satisfactory.
An action to check or continue previous work.
Something given to make up for a loss or mistake.
To say sorry for a mistake or problem.
A scientific test to discover or prove something.
Drag the cards on the right so each lines up with the correct item on the left.