instruction:
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.
question:
The horse ran faster on the track than in the field because the _ was more slippery.
answer:
field


question:
He liked to clean the floor with a mop rather than a sponge, even though the _ always ended up leaving streaks.
answer:
mop


question:
He had the math test tomorrow and the science test next week, but he worried less about the _ test.
answer:

math