Question 35: Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions. Question 46. I guess Mary was very disappointed when she failed to get the scholarship.
Knowledge of modal verbs
According to the rule:
Should have + Vp2: should have (reproach)
May have + Vp2: possibly (no proof and not sure)
Must have + Vp3: surely (with proof and quite certain)
Could have + Vp3: can do but in fact not
Topic: I guess Mary was very disappointed when she failed the scholarship.
= B. Mary might have been very disappointed when she failed the scholarship.