B
In America, there are chores for children of different ages. American people think it's important to tell children their duty in the family. Use this list of chores for your children.

4. This passage tells us something about .
A. American children
B. Chinese children
C. children all over the world
D. people all over the world
5. American people think children should do chores in the family because .
A. children have nothing to do except(除了) playing
B. children should develop good habits
C. it's important to let children know their duty in the family
D. parents want their children to be good
6. If Bob is 3 years old, he can .
A. set the table
B. help make the bed
C. wash the dishes
D. take out the rubbish
7. What's the passage mainly about?
A. Why children should do chores.
B. What chores American children of different ages should do.
C. Chinese children's duty in the family.
D. Different opinions on whether children should do chores in the family.

4. A
5. C
6. B
7. B