Question

Fill in the blank with a suitable option:
He _______________ hungry. He isn't eating his food.

• A. Should be
• B. Needn't have been
• C. Might not have been
• D. Must not be

Answer 1

The correct option is D Must not be

The correct answer is Option D.

MUST NOT BE is used to state the certainty of non-existence or impossibility of something. In the given sentence, the person is definitely not hungry because he isn't eating his food.

Thus Option D is the correct answer.

The remaining options are incorrect because:

SHOULD BE expresses obligation.

NEEDN'T HAVE BEEN expresses the non-requirement of something.

MIGHT NOT HAVE BEEN expresses the improbability of something.