Amotherandheryoungsongetintoabusinasmallcityandsitdown....
问题详情：Amotherandheryoungsongetintoabusinasmallcityandsitdown.Thebusconductorcomestothemfortheirmoney.Themothersays:“Iwantoneticket（票）tothezoo”andgiveshimoneyuan.Theconductorlooksatthesmallboyforafe...