Работа с базой данных на MS SQL Server

Each of 50 states has its own school system and every state wants young people to go to school.C (satisfactory) (passing grade) (completely unsatisfactory) .It is from the first till the fifth grade.Teachers keep to the idea that children's happiness and interest are the two most important things.Students should take on average 17 subjects during their studies.It is possible to say that within the US educational system anyone can study anything at any age.There have been great changes in the educational system in Great Britain since 1988.There are some holidays between terms.Pre-school education is provided by nursery schools.There are private nurseries but these are expensive and a lot of families cannot afford them.