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.

Mark changed from toe shoes to leather shoes before going to the date with his girl friend because the _ are dressy.
leather shoes

Peggy filled the bathtub with hot water and bubbles but not salts, because the _ smelled awful.
salts

The door handle was a lot easier to use for my mom than the door knob, because the _ was sticky.

knob