英语笑话:约会

When the young waitress in the café in Tom's building started waving hello everyday. Tom was flattered, for she was at least 15 years younger than he. One day she waved and beckoned to Tom again. When Tom strolled over, she asked, "Are you single?"
"Why, yes," Tom replied, smiling at her broadly."So is my mom," she said. "Would you like to meet her?"