完形填空there arehundreds of laughter____,the people in these clubs get together every morning,

完形填空there arehundreds of laughter____,the people in these clubs get together every morning,
___they put up their hands above their heads,then they pretend to langh ,soon everyone is laughing happily,people say they feel well after___ together. for one thing,laughter is good exercise,when you laugh,you___ many muscles in your boby,Scientists say that one hundred laughs equal ten minutes___ running.laughing helps you relax.thatis a hard question to ___.we konw that people laugh more often in a group.in England people say that laughter is the best___ to the sick people.some think that laughter helps sick people get___ do you think so,too急啊,望高手解答,能做多少算多少