Our parents ____ ____ ____ ____ us every time we leave home.

人口增长必须与当地资源和环境相协调，与社会经济发展相适应，人地关系才能和谐，据此完成小题．
下列地区中，属于世界人口稠密区，但人口自然增长率出现负增长的是（ ）

      Mrs. Herry lived in a city of America. Her husband had a few big stores. Two years ago the rich shopkeeper was hit(被撞) in a traffic accident. He was taken to a hospital at once, but the doctors could not save him and he soon died. He left his wife plenty of money, but the woman was very sad. She sent(打发) all servants(佣人), cooks and drivers away and began to live alone. But she took good care of Bobby, her husband's dog. And she can't leave him now.
      One summer afternoon, Mrs. Herry went to do some shopping. Suddenly it began to rain, so she had to take a bus. As soon as she got on, she said to the driver, “Can you look for a seat for my dog if I buy a ticket for him, Sir? ”
    The driver had a look at the dog and found its legs were very dirty. He said, “Of course I can, Madam. But he must sit on the seat like you do!”
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