学进去

Sally’s old grandfather lives with her. Every morning he goes for a walk _____ the park and comes home _____ half past twelve for his lunch. But one morning a police car _____ near Sally’s house at twelve o'clock, and two policemen _____ her grandfather to get out. One of them said to Sally, “The old man lost his way in the park and called us _____ help, so we sent a car to bring him home.” Sally _____ very surprised, but she _____ the policemen and they left. “But, grandfather,” she asked, “you _____ to the park every day for twenty years. How did you lose your way?” The old man smiled and said, “I didn’t lose my way. I was just _____ and didn’t _____ to walk home.”