31.   I answer all letters and read most of them.

32.   Imagine that you work in the consumer affairs department of a major appliance manufacturer, answering letters from customers.

33.   It is long past time he answered their letter.

34.   Now I know how to answer the letters from all those tofu freaks.

35.   Questions of general interest will be answered in this column, but unpublished letters cannot be answered individually.

36.   Questions of general interest will be answered in this column, but requests for medical advice cannot be honored and unpublished letters cannot be answered individually.

37.   Questions of general interest will be answered in this column, but requests for medical advice cannot be honored, and unpublished letters cannot be answered individually.

38.   Requests for medical advice cannot be honored and unpublished letters cannot be answered individually.

39.   Sometimes, schools just answered the letters from kids.

40.   The story goes that he balked at the assignment of answering this letter from a child, but then saw it as an opportunity to address a modern malady.