用所给词的适当形式填空，并把所填单词写在后面所给的横线上。

     In China, since l978, more and more people __1__ (work) in the city．And now many of them

 __2__ (have)their own houses and even cars．But before l978, many people usually had __3__ (go) to 

 work on foot．They spent a lot of time __4__ ( go) back and forth to work．Then they had bikes and

  they __5__ (fed) very convenient．

    In thel980s and 1990s, we __6__ (build) many road in china．Now, as there are more and more cars,

 the roads __7__  (get) more and more crowded, and sometimes we __8__ (stop) cars here and there．

 So the Chinese government is planning to build more roads, especially flee ways．When We __9__ 

 (finish), they __10__ (be) able to hold many cars at the same time and be of great help to people．