Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
I’m sure Luisa was very disappointed when she failed the exam
A. Luisa may be very disappointed when she failed the exam.
B. Luisa must have been very disappointed when she failed the exam.
C. Luisa must be very disappointed when she failed the exam.
D. Luisa could have been very disappointed when she failed the exam.
Đáp Án B.
Nghĩa câu gốc: Tôi chắc chắn rằng Luisa đã rất thất vọng khi cô ấy trượt kỳ thi.
B. Luisa hẳn đã rất thất vọng khi cô thi trượt.
Các đáp án còn lại đều sử dụng thì khác không phải là quá khứ đơn nên sai.