1.
My mother is neither tall nor heavy, but she's the biggest person in my life.
  My mother is the biggest person in my life.
  My mother is the greatest person in my life.
2.
Having a barbecue is the idea way to spend a summer's day.
  In summer, having a barbecue is a wonderful idea.
  What fun it is to have a barbecue to spend a summer day.
3.
The night life in Taipei is second to none.
  The night life in Taipei is the best.
  Taipei offers more colorful night life than other places.
4.
Reference books are often overlooked.
  Reference books give us not only information but fun.
  Reference books are often neglected as a source of entertainment.
5.
Trains are here to stay.
  Trains survive among modern means of transportation.
  Trains are always popular and timeless.
6.
Many people are confused by the terms snack food, junk food, and fast food.
  Most people can't distinguish the terms snack food, junk food, and fast food.
  Most people have only a vague idea about the terms snack food, junk food, and fast food.
7.
Most fads are silly, and the Hello Kitty fad is no exception.
  The Hello Kitty fad is silly and will be short-lived.
  The Hello Kitty fad is a waste of money, and it will fade finally.
8.
There are two sides to argument that high school students should wear uniforms.
  There are different opinions about whether high school students should wear uniforms.
  People have different opinions about whether high school students should wear uniforms.