同位语都要放在被修饰的词并用逗号隔开对么,这儿that是同位语还是从句呢hecouldn'texplaimthefactthatmary'swalletwasfoundinhisroom

　　同位语都要放在被修饰的词并用逗号隔开对么,这儿that是同位语还是从句呢

　　hecouldn'texplaimthefactthatmary'swalletwasfoundinhisroom