一,写出下列词的复数形式.
potato_______ puppy_______
bird______ friend_______
kilo_______ tomato_______
orange_______ dish_______
book_______ pencil_______
二,写出同类的词,看谁写的多.
1.kitten dog______________________________________
2.cabbage onion___________________________________
3.pencil rubber___________________________________
4.milk coke_______________________________________
5.brother cousin__________________________________