12. Change the following sentences using 'Used to'. Example: He went to school
He used to go to school.
a. He lived in France as a boy.
b. They didn't go out in those days.

HE USED TO LIVE IN FRANCE AS A BOY

THEY DON'T USED TO GO OUT IN THOSE DAYS

the cost of attendance or coa is an approximate budget for the cost of attendance of the whole academic year. in order to calculate this, universities take into consideration many factors like room and board, tuitions and fees, books, transportation and personal expenses such as medicine, laundry, clothing. all these factors combined make up the final sum to the cost of attendance in each university.