摘要:根据对话内容.用方框中所给词的适当形式填空. exercise, relax, medicine, use, club, good, happy, Do you laugh every day? Most people do. Scientists say that people laugh about 17 times a day. That is a lot of laughter. In India, there are hundreds of laughter 1 . The people in these clubs get together every morning. First they put up their hands above their heads. Then they pretend to laugh. Soon everyone is laughing 2 . People say they feel 3 after laughing together. Scientists believe that laughter is good for you. Why? For one thing, laughter is good exercise. When you laugh, you 4 many muscles in your body. Scientists say that one hundred laughs equal ten minutes of running. Laughing helps you 5 . That's good for you, too. Why do we laugh? That is a hard question to answer. We know that people laugh more often in a group. They don't laugh very often when they are 6 . Many scientists believe that we use laughter to get on well with other people. Laughter helps us feel part of a group. In England, people say that laughter is the best 7 . Some think that laughter helps sick people get better. Do you think so, too?

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