根据短文内容，判断句子正(T)、误(F)。 Do you like sports? Are you getting enough exercise? Well, if you're looking for a way to exercise, try walking. ● Walking is easy. There are no special instructions, and there are no rules. You just walk-left, right, left, right. See? It's easy. ● Walking is cheap. Don't spend money on expensive clothes and equipment (器材). All you need is a pair of good shoes. ● Walking is fun, and it gives you time for yourself. Go with a friend. Walk and talk. Do something you enjoy. Listen to music, think about life, relax and so on. ● Walking is good for your health. It's good for your mind and body. You feel good after walking a lot. And now scientists say that walking outdoors is a best exercise. ● Walking is good in all kinds of weather. So it's raining? Don't worry, take an umbrella. When it's sunny, use sunglasses. If it's hot, take some water with you. When it's cold, you always feel warm. And walking in the snow is of great fun! Are you willing to walk? Don't wait! Just do it! (     )1. Here are four reasons why walking is great exercise. (     )2. You must follow some rules while you are walking. (     )3. If you walk, you needn't buy expensive clothes. (     )4. Walking is boring because you can't walk on rainy days. (     )5. The passage tells us walking is a good way to keep healthy.