1Hekeepsarecordofeverything____(who,that,which,what)hehadseenthere.2.Mr.JohnsaidthatSuzhouwasthefirstcity____(that,where,which,what)hehadvisitedinChina.3.Whoistheperson____(he,who,which,whom)isstandingatthegateofBeijingTourismTower?