【单选题】听力原文:M: Mary, can you tell why Britain is separated from the continent? W: I guess I cannot. Maybe millions of years ago, at the end of the Ice Age, a great flood washed over a wide, low plain, and cr...
A.
Because of a flood millions of years ago.
B.
Because of an earthquake millions of years ago.
C.
Because of a flood thousands of years ago.
D.
Because of a volcano eruption millions of years ago.