1) What was special about the teacher's voice?He spoke with a surprising tone of____________ for his students.2) What was the most valuable thing that a teacher could give his students according to the author?Awakening students' passion for ____________.3) What did Mr. Stone think of the importance of people’s interest in reading and writing?People with interest in reading and writing would ____________ far richer and fuller lives.4) What was Mr. Stone's response to the good-bye party given by the students?He was moved to ____________.