题目内容：

根据中文及首字母提示，完成句子。

1.As a m_____ of fact, she didn’t know the thing at all.

2.China has developed a lot because of our country’s one-child p_____.

3.As we know, _____ (无一人) of us likes pollution.

4.Look! The factory is pouring        (废弃的) water into the river.

5.Loud noises can cause high _____ (血) pressure as well.