小题1:healthy小题1:was小题1:over小题1:not 小题1:helpful/important/useful/necessary/good
小题1:从文章的句子:butdoyouknowthatlaughingisverygoodforyourhealth?可知把health改成healthy小题1:从文章的句子:anIndiandoctoropenedthefirstlaughterclubin1995.可知opened变成wasopened小题1:从文章的句子:Nowtherearemorethan1,000laughterclubsaroundtheworld.可知morethan改成over小题1:从文章的句子:Welaughwitheachother,butneverateachother.可知是记得不要嘲笑别人;not 小题1:从文章的句子:Ithelpsusmakefriendsandunderstandeachotherbetter可知把help改成helpful/important/useful/necessary/good