Mark the letter A, B, C, or D on you...

Câu hỏi: 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.

A. Luisa must be very disappointed when she failed the exam.

B. Luisa must have been very disappointed when she failed the exam.

C. Luisa may be very disappointed when she failed the exam.

D. Luisa could have been very disappointed when she failed the exam.