$\frac{1}{3}$ ≈____％

$\frac{3}{4}$ ＝____％

$\frac{4}{5}$ ＝____％

    Nowadays more and more Chinese teenagers find life more difficult without their parents. They don't know how ____housework. Because their parents do almost everything for them at home. This is a big problem.

    Joy is 14 years old. One day her parents____away on business(出差), so they asked Joy ____home alone. At first she thought she would be happy ____her parents were not in. She could do what she liked. But it was six o'clock ____the afternoon, she felt hungry.“Oh, it's time ____supper. Where can I get my food?”she said to herself.Later she found some food in the fridge, but she didn't know how to cook.At that moment, she missed her____very much. At last she could only go to the supermarket and____some food to eat.

    Many teenagers are the ____as Joy. So I think they should learn some basic life skills,____as cooking, cleaning their rooms or dressing themselves properly. They shouldn't depend too much on their parents.