单项选择题

How did the English Channel come into being

A．Because of a flood 10,000 years ago.
B．Because of an earthquake 10,000 years ago.
C．Because of a flood 100,000 years ago.
D．Because of an earthquake 100,000 years ago.

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单项选择题

What is not true about the building of the Channel

A．A British team started to drill southeast from Dover.
B．A French team started to drill northwest from Sangatte.
C．The two teams started drilling in 1988.
D．The two teams met under the channel in December 1990.

单项选择题

When was the Tunnel opened to the public

A．1990.
B．1991.
C．1992.
D．1993.