ars ago, three scientists traveled to theAntarctica to explore a secret world hidden _________ the ice.
I know a little bit about the city as I __________ there for one year in my youth
Tom as well as two of his classmates _____invitedto the party.
Helen _______ the train ______ home yesterday.
The boys________the newspaper on the ground and began to read the news and articles in it.[ ]