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My neighbour Mrs White is seventy，and she has a small car．She always drives to the shops on Saturday and buys some food．Her car is old．She drives slowly，but she drives well, and never hits(撞击)anything．Sometimes her granddaughter says to her,“Please don't drive your old car，Grandma．You are too old．We can drive you to the town．”But she always says，“No．I like driving．I have driven for fifty years，and I am not going to stop now．”One Saturday she stops her car at traffic lights when they are red．The lights become green，then yellow，then red again，but Mrs White's car can't start．“What am I going to do now?”she says．Then a policeman comes and says to her with a smile，“Good morning．You like all of our colours, don't you?”