2. four knifes
3. seven apples
4. nine cakes
5. eight cherries
6. two pumpkins
7. three carrots
8. five sandwiches

1. a pen-two pens
2. a bus-ten busses
3. a woman-two women
4. a mouse-three mice
5. a fish-three fish
6. a tooth-five teeth
7. an ox-four oxen
8. a deer- two deers
9. a child-two children
10. a class-three classes
11. a foot-two feet
12. a sheep-ten sheep
bài 7 mình không biết,chấm điểm đi

1. a pen-two pens
2. a bus-ten busses
3. a woman-two women
4. a mouse-three mice
5. a fish-three fish
6. a tooth-five teeth
7. an ox-four oxen
8. a deer- two deers
9. a child-two children
10. a class-three classes
11. a foot-two feet
12. a sheep-ten sheep