Both bus and tree topologies are character

      As a child, I was truly afraid of the dark and of getting lost; these fears were very real and caused me
some uncomfortable moments.
       Maybe it was the strange     1     things looked and sounded in my familiar room at night that     2     me
so much. There was never total       3      , but a streetlight or passing car lights      4    clothes hung over a
chair takeon(呈现) the     5    of a wild animal. Out of the corner of my     6    , I saw the curtains seem to
move when there was no     7     . A tiny sound in the floor would seem a hundred times louder than in the
daylight. My      8     would run wild, and my heart would beat fast. I would      9     very still so that the "
enemy" would not discover me.
       Another of my childhood fears was that I would get lost,   10     on the way home from school. Every
morning I got on the school bus right near my home .That was no     11      . After school,      12     , when all the buses were    13   up along the street, I was afraid that I'd get on the wrong one and be taken to
some      14    neighborhood. On school or family trips to a park or a museum, I wouldn't let the leaders out
of my    15     .
       Perhaps one of the worst fears      16     all I had as a child was that of not being liked or   17    by
others. Being popular was so important to me   18    , and the fear of not being liked was a     19     one.
       One of the processes(过程) of growing up is being able to      20     and overcome(克服) our fears.
Understanding the things that frightened us as children helps us achieve greater success later in life.