Mr.Smithgradually_____aknowledgeofthesubject.

---Ileftmyhandbagonthetrain,butluckilysomeonegaveittoarailwayofficial.

---Howunbelievabletogetitback!Imean,someone______it.

Acityistheproductofthehumanhandandmind,__________man'sintelligenceandcreativity.

Althoughhedoesn'tlikethatlaw,hewill_____withit.

Recentlyasurvey_______pricesofthesamegoodsintwodifferentsupermarketshascausedheateddebateamongcitizens.