Welcome to the Science Museum, everyone! This stone axe _______ in South Africa and experts can’t be exactly sure about its use.
__________ such heavy pollution already, it may now be too late to clean up the river.
__________ with arms, the soldiers determined to fight against the terrorists.
__________ in her most beautiful skirt, the girl tried to make herself __________ at the party.
The farmers built long fences, __________ keeping the wild dogs out of them.
Once __________, the play was well received by the public.