Jane failed to understand how serious her illness was until she spoke to the doctor. => Not until
Jane failed to understand how serious her illness was until she spoke to the doctor.
=> Not until _____________________.
Jane failed to understand how serious her illness was until she spoke to the doctor.
=> Not until _____________________.
Lời giải:
Đáp án: Not until Anna spoke to the doctor did she understand how serious her illness was.
Giải thích: Đảo ngữ với not until: Not until + S + V + trợ động từ + S + V
Dịch: Mãi cho đến khi Anna nói chuyện với bác sĩ, cô ấy mới hiểu căn bệnh của mình nghiêm trọng như thế nào.