1、 写出下列词的复数形式baby _____ potato _____ knife _____ photo _____ Chinese _____ hamburger _____ case _____ key _____ watch _____ name _____strawberry _____ tomato _____ dollar _____ orange _____ people _____ documentary _____ boy _____ piano _____ child _____ man _____ this _____ that _____ I _____ she _____ you _____ bus _____ wish _____ Japanese _____

babies. potatoes. knives.photos.Chinese
hamburgers. cases keys watches names
strawberries tomatoes dollars oranges people
ducumentaries boys pianos children men
these those we they you buses
wishes Japanese

babies
potatoes
knives
photos
chinese
hamburgers
cases
keies
watches
names
strawberries
tomatoes
dollars
orangers
people(做民族解释时peoples)
documentaries
boys
pianos
children
men
these
those
we
they
you
buses
wishes
japanese