A. pavement
Đáp án C
Kiến thức về cụm từ cố định
take a stroll/ trip/ walk down memory lane = remember happy times in the past: hồi tưởng lại những kí ức vui
The word “cutting-edge” in the second paragraph is closest in meaning
Like their (5) ____________ in other countries, American educators continue to debate these questions.
In Australia, through exchange programmes and benefits for youth, there are so many opportunities for a young person to broaden their (6) ____ through travel in a gap year.