Keith knew that a GPS navigation device was very complicated. He believed that Cathryn would undoubtedly get lost without his help. Thinking of the roads that she had been on, she was a little reluctant to agree with Keith. So she explained to him, "I have a good sense of direction. I'm sure I can find my way back to the hotel."

This made Keith burst into laughter. "Well, you indeed have a good sense of direction," Keith replied with sarcasm in his voice. Hearing his answer, Cathryn ...