20%
Help the frantic cat owner brainstorm! Select ALL the options that correctly complete the sentence to show a 50% possibility.
"I can't find Mr. Whiskers anywhere! I'm not entirely sure, but he _____ hiding in the laundry basket again."
The correct answers are might be, could be, and may be.
When we are guessing about a present situation and think it is possible (around 50% certainty), we use might, may, or could followed by the base verb.
Must be is incorrect here because it implies you are almost 100% certain, which contradicts "I'm not entirely sure."
Can be is generally not used for specific present deductions; it is used for general truths (e.g., "Cats can be very sneaky").