1.Falling is the common type of accident for young children at home.
2.Make sure he or she can’t open any windows.
3.He or she may also fall down the stairs.
4.Make sure he or she can’t roll off the bed/the sofa
IV
1. let
2. is cooking
3. am
4. climbed-felt-broke
5.is running
6.toothache...will go
7.washes
8.had