用适当的介词填空。 1. The writer was educated _____ a very good school. 2. He received a title _____ a reward for his service to the na- tion. 3. She rewarded the boy with＄10_____ his help. 4. They stopped me _____ going out of the door. 5. The teacher refused to have his daughter in his class, for fear _____ showing favor to her.