Urban (城市) crowdedness would be greatly relieved if only the_______ charged on public transport were more reasonable.

 —What’s the market ______ of their car in China?—About 18 percent at present.

Those who don’t get their sufficient sleep are actually sending a(n) _____ to severe problems in their life.

The local government are offering a  _________of 10000 dollars for any information helping find the murder of the couple．

Think twice before you make a decision on this matter. It will make ______ to your life.