Key to Translation (Page 58) 1.An opportunity as good as this arises/occurs only once in a blue moon. 2.The boy felt guilty for taking money from his mother's handbag without permission. 3.She did not give credence to a single word of his story. 4.Generally speaking,teachers are tolerant of their students'mistakes. Unit 3,Book 4 Key to Translation (Page 58) Unit 3, Book 4 1. An opportunity as good as this arises/occurs only once in a blue moon. 2. The boy felt guilty for taking money from his mother's handbag without permission. 3. She did not give credence to a single word of his story. 4. Generally speaking, teachers are tolerant of their students' mistakes