he was only twelve he could run faster than any kids in the school. A. Though B. Because

问题补充：

he was only twelve, he could run faster than any kids in the school.

A. Though B. Because C. If

答案：

解析：本题的含义是虽然他只有12岁，但是他跑的比学校其他的孩子都快，though表示尽管的意思，表示让步，故本题选A。