Nhi YếnĐoạn 1: Food preservation
- D. maintain
- → "help maintain the freshness and safety of food" là đúng ngữ pháp và nghĩa.
- A. Apart from
- → "Apart from refrigeration, other techniques..." – ngoài việc làm lạnh, còn có những phương pháp khác.
- D. unless
- → "... food can still go off unless it is properly stored..." – trừ khi được bảo quản đúng cách.
- C. amount
- → "... important to use a large amount of food within a reasonable timeframe..."
- C. other
- → "...or try other methods like drying or pickling."
✅ Đáp án đoạn 1: 11D – 12A – 13D – 14C – 15C
Đoạn 2: The Problem of Child Labour
- D. involves
- → "Child labour is a significant issue that involves many children..."
- B. Due to
- → "...which has a long-term impact on their futures. Due to these challenges..."
- A. focusing on
- → "organizations like UNICEF are focusing on providing..."
- C. better
- → "...providing better opportunities for children."
- D. reduce
- → "...efforts are being made to reduce its impact."
✅ Đáp án đoạn 2: 16D – 17B – 18A – 19C – 20D