英語定語從句怎麽做？

1。As we all know, China will be a developed and advanced country in twenty to thirty years.

2.I will never forget the days in the countryside, which have a great impact in my life.

3.I don't like the way that he is talking.

4.He was rude to the Custom's officer,which will definitly make things worse.

5.Everyone wants to make friends with those who are helpful and humurous.