Ayearlater，withthenation’seconomy________，Bush’sapprovalratingdroppedbelow40percent
Neverbefore_______sorapidlydevelopingasitistoday．
翻译：Yettherewasabiggermovementintheairby1750.
DuringtheSecondWorldWar,Roosevelt,StalinandChurchillmetat________.
Theprofessoraskedaquestion,andDavid________agoodanswer.
