对联搭配。   

绿竹别具三分景               梅桃李杏梅占先  

松竹梅岁寒三友               红梅正报万家春   

芳草春来依旧绿               桃李杏春风一家   

春夏秋冬春为首               梅花到时自然红

根据句子意思完成已给出首字母的单词。

1. China has the l___________ population with 1.3 billion.

2. Chen Jun said that Project Hope had c                     his life.

3. Can the homeless people get good food and m____________ treatment?

4. Walking or riding a bike will save energy and r____________ air pollution.

5. Almost everyone knows that air pollution is h____________ to people's health.