The key answer of exercise 1
The key to exercise solutions in chapter 7 - Reading for the textbook New Headway Advanced - Workbook with authors Liz Soars, John Soars and Paul Hancock from Oxford University Press
Question
Read and listen to the joke at the beginning of the article. What caused the misunderstanding?
Answer
The phrase 'Let's make sure he's dead.' The speaker intended for the other person to check for breathing, whereas this was misinterpreted as 'ensure that he is dead' - so kill him if not!