They have learnt English for ten years. => They started
They have learnt English for ten years.
=> They started _______________________.
They have learnt English for ten years.
=> They started _______________________.
Lời giải:
Đáp án: to learn English ten years ago.
Giải thích: have Vp2 for... = started to V ...ago
Dịch: Họ bắt đầu học tiếng Anh vào 10 năm trước.