__61_theimprovementoflifestandards，thereareagrowingnumb...
问题详情：__61_theimprovementoflifestandards，thereareagrowingnumberofpeopletravellingeachyear,___62__isagoodwaytoenjoylife.Somepeoplewouldlike___63___(take)apackagetour,whileotherswouldrather___64___(tra...