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The policemen went into action ________ they heard the alarm.

A．suddenly　　　　　　 B．hurriedly

C．quickly　　　　　 　　D．immediately

As a result of the ________ competition among the airlines，travel expenses have been greatly reduced.

  A．fierce               B．terrible   

  C．eager                D．necessary

The United States ________ founded in 1776.

      A．were    B．are    C．is  D．was

I have finished a large part of the novel written by Dickens，the rest of which

      ________ very difficult.

      A．is      B．are    C．was     D．were

I hoped that somebody  ________  going to offer me a lift  home.

     A．is    B．are    C．were   D．was

A nice gift，with many flowers ________ to me by my students on Teachers’ Day.

     A．is sent      B．has sent    C．has been sent   D．was sent

During the past two years,the number of automobile accidents in NEW York City       decreased

A have  B has C was D were

Either you or one of your students ________ to attend the meeting that is due

       tomorrow.

          A.are          B．is     C．have   D．be

He was very angry，because everyone except him________ invited to the party.

       A．were          B．was    C．is         D．are

 The atmosphere is as much a part of the earth as ________ its soil and water of its

      lakes，rivers and oceans.

      A．has              B．do       C．is                D．are