A．50 underground stations were made waterproof.B．A flood wall was built.C．An alarm sys

______ that dress when I first saw you at the station？A、Were you wearingB、Have you worn

听力原文： Attention passengers. The 6:50 A.M. nonstop express train from Union Station Was

A．Fifty underground stations were made waterproof.B．A flood wall was built.C．An alarm

A．Miners were required to wear more clothes while working underground.B．Workers were n

What measure was taken against floods in London in the 1960s？A．50 underground stations wer

Heavily armed soldiers were stationed along major downtown streets ______.A．to safeguard t