A. problem
Đáp án A
Every child in Great Britain between the age of five and fifteen must (23)_________school.
Remember, the interviewer is genuinely interested in you, so the more you relax and are yourself, the more (35) ________ you are to succeed.
Political parties use volunteers at election time, and Churches depend on volunteers to (35) _______ building clean.
There (24)_________ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.
In London as in all cities there are two grades of state schools for those (26)_________will go to work at fifteen: primary schools for boys and girls between the ages of five and eleven, and secondary schools for children from eleven to fifteen years.