A. Students need a good plan for defeating other robots.
B. Students compete against their classmates and students from other schools.
C. Students compete in robot sumo contests.
D. Students must be creative to win.

A. Important information that tells more about the overall idea of a piece of writing.
B. Sentences that make the main idea stronger and clearer.
C. The sentences that make up the bulk of a paragraph in a piece of writing.
D. Details that support other details.

A. Students like building sumo robots.
B. Students compete in robot sumo contests.
C. They use excellent strategies to defeat other robots.
D. They must have a good plan for defeating other robots.

A. Important information that tells more about the overall idea of a piece of writing.
B. What a piece of writing is mostly about.
C. What someone is primarily talking about.
D. A vague idea that is supported by very specific details.