She was so angry and spoke so fast that none of us understood ______ he said meant．

It is difficult for children to change their eating habit later in life. _____，parents should encourage healthy eating from an early age.

If you have health examinations______, any disease you may have can be discovered early and successful treatment is more likely,

It’s impossible for ____ few people to finish ____ a lot of work in only two days. 

The traffic problems have severely affected economic development. ________, we must spare no efforts to solve them.