To correctly categorize the verbs in the third person singular, we need to consider the pronunciation of the ending sounds. Here is the completed table:

/s/ (after /f/, /k/, /p/, /t/)
- works
- talks
- laughs
- drives
- smokes
- sleeps
- sits

/ɪz/ (after /s/, /ʃ/, /tʃ/, /dʒ/, /z/)
- washes
- watches
- kisses
- mixes
- closes
- teaches

/z/ (after other sounds)
- plays
- comes
- dances
- goes
- swims
- visits
- knows
- rides
- opens
- speaks
- changes

So, the verbs read out in the third person singular are:

/s/:
- he works
- he talks
- he laughs
- he drives
- he smokes
- he sleeps
- he sits

/ɪz/:
- he washes
- he watches
- he kisses
- he mixes
- he closes
- he teaches

/z/:
- he plays
- he comes
- he dances
- he goes
- he swims
- he visits
- he knows
- he rides
- he opens
- he speaks
- he changes