Mrs. Brown lives in a small village. Her husband is dead. She has a son but no daughters. His name is John and he is twenty-five. After John finishes college  , he gets work in a big city, New York, and he lives there. It's quite a long way from his mother's home, and she is not happy about it. But John says, "There is no good work for me in this small village, Mother, and I can get a lot of money in New York. Then I can give much to you."
One day Mrs. Brown is very angry. She takes a train to her son's house in New York. Then she says to him. "John, why do you never call me?"
"But mother," John laughs   and says, "You don't have a telephone with you."
"No," she says, "I haven't, but you have one."
How does Mrs. Brown go to New York one day?
On foot By bus By bike By train