BHiMrBlackWhatsthatb的精選

問題詳情：口語交際選出恰當句子補全對話A:Hi,James! B:Hi,MrBlack!What'sthatbehindyou?A:_______(1)    B:Arobot(機器人)?Whatcanitdoforyou?A:Itcanhelpmerememberalotofimportantthings.B:Really?Itsoundsve...