Four letter words--Change 0 to 1 letter to make a new word

pear :pear:

pray :pray:

Mary :girl:

mare :horse:

care. :couple_with_heart_woman_man:

acre.

hare :rabbit2:

race :running_man:

face :grinning:

fact.

tack :pushpin:

hack :computer:

heck :fire:

hick :cowboy_hat_face:

hock :rooster:

lock :lock:

sock :socks:

soak :shower:

soap :soap:

past :leftwards_arrow_with_hook: