Foundation
English
Verb
Tenses
Tenses
Question
Fill in the blank with the most suitable option:
I can't find my keys. I have a feeling I _______________ them in the library.
I can't find my keys. I have a feeling I _______________ them in the library.
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Solution
The correct answer is Option B.
MUST HAVE LEFT is used to express a possible fact based on a fact. In the given sentence, the speaker feels that he has possibly left the keys in the library because he can't find them.
The remaining options are incorrect because:
MIGHT LEAVE expresses possibility.
COULD LEAVE expresses permission or consequence o an event.
SHOULD HAVE LEFT expresses an obligation.