1、books、chairs、flowers、desks、balls、dolls、beds、boots、phones、bags
2、glasses, boxes, brushes, matches,churches、dishes、wishes、dresses、buses、watches
3、cities, babies, enemies,families、dictionaries、countries、abilities、victories、glories、beauties
4、kilos,photos,memos,heroes、potatoes、tomatoes、zoos、pianos,Negroes、radios
5、leaves、knives、wives、shelves、 theives、yourselves、wolves、halves、lives
6、foot-feet man-men woman-women mouse-mice child-children goose→geese sheep→sheep, deer→deer fish-fish Chinese-Chinese