1. "Sam scared." (This is a simple statement, with a period at the end.)
2. "Sam scared!" (This emphasizes Sam's fear, using an exclamation point.)
3. "Sam was scared." (This adds a verb and tense to the sentence.)
4. "Sam was scared of what he saw." (This provides more context and information about Sam's fear.)
5. "Sam, scared, ran away." (This uses a comma to separate the adjective "scared" from the rest of the sentence, implying that Sam's fear is a defining characteristic of his action.)
The best option will depend on the specific situation and what you want to communicate about Sam's fear.