In fact, I wonder _________ my efforts were all in vain.

  A. that                 B. which             C. why              D. where   

 Cloning plants is straightforward while cloning animals is _____________ more complicated.

  A. very                                   B. far                           C. fairly                     D. quite

 The doctor recommended that you ____________ swim after eating a large meal.

  A. wouldn’t                      B. couldn’t                  C. needn’t                   D. shouldn’t

 Only a small percentage of the graduates ___________________ a job.

  A. have been offered            B. have offered                C. has been offered        D. has offered

 – What do you think of my sofa?

  -- Well, great! But don’t you think it will _____________ too much space?

  A. take in                      B. take on                C. take up              D. take off

 Maybe you have been to many countries, but nowhere else _____ such a beautiful palace.

A. can you find                     B. you could find               C. you can find           D. could you find

 The plan once I objected to________ out fine.
  A．working                   B．work                   C．had worked                D．worked

 The movie Jurassic Park was a big hit, with its novel idea ___________ a mixture of fear and excitement into people’s hearts.

  A. strikes             B. struck               C. to strike                 D. striking

 Li Na ____________ her husband’s significant contribution in her development on the WTA Tour.

  A. thanked                   B. acknowledged     C. owed                   D. accumulated

 It makes great sense to check and ____________ the brakes（剎車）regularly.

  A. adjust                 B. adopt               C. adapt               D. apply