Thefarmingmethodshavebeen________improvedwiththeinventionofthenewmachine.
翻译：WorldWarIIwasmorecomplexthanWorldWarI,whichwasacollisionamongtheimperialistpowersoverthespoilsofmarket,resourcesandterritories.
Iftheoperation________carefullyprepared,itwouldnothavebeensuccessful.
Wepromisethatwe’llmeetagainafterwe_______ourcollegeeducationinthreeyears’time.
TheToriesweretheforerunnersof________,whichstillbearsthisnicknametoday
