* "Mark Twain" isn't a specific school or program. Are you referring to a specific school named after Mark Twain? Or perhaps a particular program or class that uses his works?
* Entrance requirements vary greatly. Schools have different admissions standards based on location, type of school (public, private, etc.), and the level of education (high school, college, etc.).
* "Score" is vague. Are you asking about a standardized test score (like the SAT or ACT)? A GPA? Or something else entirely?
To give you a helpful answer, please clarify:
1. What school or program are you interested in?
2. What type of score are you asking about?
Once you provide these details, I can help you find the information you need.