单项选择题
A．They often take place in major industries. B．British trade unions are more powerful. C．There are more members in Britain. D．Britain loses more working days through strikes every year.
A．Thomas Jefferson has never been in Washington before 1801. B．Washington was not the first capital of United States. C．Washington didn’t have a presidential palace before 1801. D．Washington contained many old buildings.
A．Joan was hit by a car. B．Joan was dying. C．Joan was sent to hospital. D．Joan’s dog was badly hurt in an accident.