---Mom, what did your doctor say?

    ---He advised me to live ________ the air is fresher.

    A. in where        B. in which         C. the place where D. where

 Start out right away, ________ you'll miss the first train.

    A. and             B. but              C. or               D. while

 ---The boss said we had only three days to finish the work.

   ---Don't worry. We have already ________ two thirds of it.

    A. got down        B. got through      C. given in         D. given away

 The Chinese are proud of the 29'e Olympic Games ________ in Beijing in 2008.

    A. hold            B. holding          C. held             D. to be held

 ---Did you enjoy yourself at the party?

  ---Yes. I've never been to ________ one before.

    A. a more excited B. the most excited C. a more exciting D. the most exciting

 At the foot of the mountain __________

    A. a village lie   B. lies a village   C. does a village lie D. lying a village

 ---Can he take charge of the computer company?

    ---I'm afraid it's ________ his ability.

    A. beyond          B. within           C. Of               D. to

 ---It's thirty years since we last met.

    ---But I still remember the story, believe it or not, ________ we got lost on a rainy night.

      A. which           B. that             C. what             D. when

 Of all the books on the desk，________ is of any use for our study.

    A. nothing         B. no one           C. neither          D. none

 ---Is Jack on duty today?

    ---It ________ be him. It's his turn tomorrow.

      A. mustn't         B. won't            C. can't            D. needn't