Question

Fill in the blank with the most suitable option:
The package ______________ to the wrong address.

• A. Must have been sent
• B. Ought to be sent
• C. Could have sent
• D. Might have sent

Answer 1

The correct option is A Must have been sent

The correct answer is Option A.

MUST HAVE BEEN expresses certainty of a fact. In the given sentence, the speaker is certain that the package is sent to the wrong address.

Thus Option A is the correct answer.

The remaining options are incorrect because:

OUGHT TO BE SENT expresses obligation.

COULD HAVE SENT expresses ability.

MIGHT HAVE SENT expresses possibility.