—Oh, no.           umbrella is Linda' s.

 you know that girl. She's in your class.

Bob, do you   every day?

Mr. Green    here on time．

Don't    on the sofa．

    Do you like sports? Are you getting enough exercise? Well, if you want an easy way to exercise, try walking.

    There are no special instructions (操作指南), and there are no rules. You just walk— left, right, left, right. See. It's easy.

    You don't need to Spend money on expensive clothes and equipment (器材). All you need is a pair of good shoes.

    You can go with a friend. Walk and talk. You can also do something you enjoy by yourself. Listen to music, think about life ，relax and so on.

    It makes you feel good, sleep better and helps to manage your weight (管理你的体重). It's an easy way to get the exercise you need to stay healthy.

     It's raining? Take an umbrella. When it's sunny, use sunglasses. If it's hot, take some water with you. It's cold? Don't worry. Walking can make you feel warm. And walking in the snow is of great fun!

    Do you want to walk? Don't wait! Just do it!