6, He is very proud. He can not do that
=> He is too proud to do that
7, That piece of wood is very hard.It cannot be broken
=> That piece of wood is too hard to be broken
8, She is very eager. She can not wait for you
=> She is too eager to wait for you
9, The tooth is very decayed.It can not be kept
=> The tooth is too decayed to be kept
10, The girl is very sick. She can not do the work herself
=> The girl is too sick to do the work herself
11, This boy is very sleepy. He can not enjoy the display of fireworks
=> This boy is too sleepy to enjoy the display of fireworks
12, The fruit is very green. It can not be eaten
=> The fruit is too green too be eaten

1, The children were too late to see the display of fireworks
2, Your brother is too young to go swimming
3, He was too old to ride the bumper car
4, Mary was too tired to go on with the work
5, I am too anxious to wait for you any longer
6, He is too proud to do that
7, That piece of wood is too hard to be broken
8, She is too eager to wait for you
9, The tooth is too decayed to be kept
10, The girl is too sick to do the work herself
11, This boy is too sleepy to enjoy the display of fireworks
12,  The fruit is too green too be eaten
13, Those bananas are too ripe to be kept for a long time
14, She is too old to work hard
15, They are too old to enjoy it

I

1.  The children were very late. They couldn't see the display of fireworks. (too)
   => The children were too late to see the display of fireworks.
2. . Your brother is very young. He can't go swimming. (too)
   => He is too young to go swimming.
3. He was very old. He could not ride the bumper car
   => => He was too old to ride the bumper car
4. Mary was tired. She did not go on with the work 
   => Mary was too tired to go on with the work