Câu 4:
1. Falling is commons type of accident for young children at home
2. Make sure he or she can't open any windows
3. A child may fall down the stairs
4. Make sure he or she can't roll of the bed
Câu 5 :
2. Is cooking
3. am
4. climbed
5. fall / break
6. is running
7. toothache / has to go
8. washes
9. has
10. ride
câu 6 :
a . Why shouldn't I play with the knife ?
- Because you may cut yourself
b Why shouldn't I play with stove ?
- Because you may get a burn
C. Why shouldn't I ride too fast ?
- Because you may fall off your bike
D . Why shouldn't I run down the stairs ?
- Because you may break your arm
