Answer: questions are a good and easy way to start, like these one,(sorry they are not the best).Have you ever been on a roller coaster? Have you ever seen one before?
No it would not consider on being a full sentence.
Explanation:
For that speech just talk about your sweetest memory . tell what happened . who all came or where there. how did you feel . tell all the answers for all questions words. do not tell the questions.
