Put the correct preposition from the following list
from, in, with, between, of, at, to, on
1.Harry started school _________________ the age of five.
2.They have a holiday _________________ Christmas. 
3 There is a holiday______________ the summer, too.
4.The teachers_________________ the school are very young.
5.Dan goes_____________ a secondary school.
6.He,ll probably pass_________good marks.
7.Betty is a teacher_____________ English.
8.Her pupils are______________12 and 18.
9.She is very strict_______________ them.