A. stronger
Đáp án C
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.
There (24)_________ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.
Political parties use volunteers at election time, and Churches depend on volunteers to (35) _______ building clean.