Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair ofsentences in the following questions.

Question 49: His parents are away on holiday. He really needs their help now.
A. As long as his parents are at home, they will be able to help him.
B. He wishes his parents were at home and could help him now.
C. If his parents are at home, they can help him now.
D. If only his parents had been at home and could have helped him.

Question 50: He finally contracted the disease. He was aware of the importance of preventive measures only then.
A. But for his awareness ofthe importance ofpreventive measures, he could have contracted the disease.
B. Hardly had he been aware that preventive measures were essential when he contracted the disease.
C. Not until he was aware ofthe importance ofpreventive measures did he contract the disease.
D. Only after he had contracted the disease was he aware that preventive measures were essential.

Question 50: He finally contracted the disease. He was aware of the importance of preventive measures only then.

Chọn một phương án bên dưới để kiểm tra đáp án ngay:
Đáp án chính thức: D
Hướng dẫn giải chi tiết
(AI giải đề cho tôi)
Câu gốc: Anh ta cuối cùng mắc bệnh; chỉ sau đó anh ta mới nhận ra tầm quan trọng của các biện pháp phòng ngừa. Nghĩa là việc nhận thức xảy ra SAU khi mắc bệnh. A sai nghĩa ('But for his awareness... he could have contracted' nghĩa là nhờ nhận thức nên tránh được bệnh — ngược với câu gốc). B sai cấu trúc/nghĩa ('Hardly... when' diễn tả hai việc xảy ra gần như ngay lập tức, không đúng trình tự). C sai nghĩa ('Not until he was aware... did he contract' nghĩa là nhận thức trước rồi mới mắc bệnh — ngược câu gốc). D đúng: 'Only after he had contracted the disease was he aware that preventive measures were essential' — đảo ngữ với Only after, đúng trình tự và nghĩa. Khớp đáp án nguồn (50. D).
Câu hỏi này trích từ đề thi chính thức:

Kỳ Thi Tốt Nghiệp THPT 2021 Đề Thi Tham Khảo Môn Tiếng Anh

50 câu hỏi•Thời gian 60 phút•Chấm điểm & giải thích chi tiết

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