'It completes the exchange: "My dog has no nose."  "Then how does he smell?"'
badly (or terribly)
PUNCHLINE: It completes the exchange: My dog has no nose.  Then how does he smell?
It completes the exchange: "My dog has no nose."  "Then how does he smell?"
It completes the exchange: "My dog has no nose."  "Then how does he smell?"
PUNCHLINE
badly or terribly
PUNCHLINE