18,000 years ago, much of Europe (0) ________(lie) (1)________(bury) beneath vast sheets of ice, hundreds of metres thick.
18,000 years ago, much of Europe (0) ________(lie) (1)________(bury) beneath vast sheets of ice,
18,000 years ago, much of Europe (0) ________(lie) (1)________(bury) beneath vast sheets of ice,