I.1 the sun rises in the east
2 the weather isn't warm enough to go swimming
3 he isn't experienced enough to do the job
4 the earth moves around the sun
5 I am lucky enough to have a lot of friends
6 Each of them have a different character
II.1 my sister is old enough to drive a car
2 she is beautiful and intelligent enough to become miss world
3 mr.robinson isn't rich enough to buy the house
I.1c old enough to
2b reserved 
3a curly
4c slim
5d character
6d humour
7b character
8c received
9a pleasure
10d classmate
11b flows