=>
7/
1. You are too young to have a front-door key.
2. It is too cold for us to bathe.
3. Would you be too kind to answer this letter by return?
4. I am not old enough to wear that kind of hat.
5. The ladder was too long to reach the window.
6. He hadn't enough money to live in.  
7. He was too furious to speak.
8. The fire isn't too hot to boil a kettle.
9. Tom was too foolish to tell lies to the police.
10. You are thin enough to slip between the bars.

8/
1. It is such a tidy room that it took us one hour to clean it.
2. He is such a fool man that no one took any notice of him.
3. It is such a long film that they can't broadcastit on one night.
4. They are such interesting books that we have read them many times.
5. It was such bad news that she burst into tears on hearing it.