Воткнуть нужное. Помогите пожалуйста!1. ____ interesting the news about the weather is!

Воткнуть необходимое. Помогите пожалуйста!
1. ____ interesting the news about the weather is! (what, such, how, so)
2. _____ fresh the air in the mountains is! (such, so, how, what)
3. _____ polluted the air and the water in big cities are! (what, how, such, so)
4. He was ____ a brave character! (so, such, what, how)
5. The Queen reigned for ____ a long period (so, how, such, what)
6. The death of the Queen Victoria was _____ a tragedy to the whole nation! (such, so, what, how)
7. _____ a wonderful view the Royal crown is! (how, such, so, what)