TASK DEFINITION: You need to answer a given question containing a blank (_). Your answer must be one of the two objects mentioned in the question, for example "trophy" and "suitcase". Your answer must not contain a word that is not present in the question. Please don't use articles (e.g., the, a) before the answer.
PROBLEM: When told to pick the blocks up from the rug and put them on the shelf, he put them on the _ because he was obedient.

SOLUTION: shelf

PROBLEM: A boy in a house tries to put a big book on a shelf built for paperbacks. The book falls to the ground because the _ is too narrow.

SOLUTION: shelf

PROBLEM: She knew something was wrong with the hearing in her ear because the _ was muffled.

SOLUTION:
hearing