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: The planted tree cannot form the shade for the fence yet because the _ is shorter.

SOLUTION: tree

PROBLEM: The rabbit was old and we had to decide whether to let it die naturally or put it down.  After getting really sick yesterday we decided to _ .

SOLUTION: put it down

PROBLEM: He didn't want to go to the business to get the product instead of getting it at the stand, because the _ was slower.

SOLUTION:
business