_____ well prepared you are , you still need a lot of luck in mountain climbing.

A. However          B. Whatever                         C. No matter     D. Although

 For many cities in the world, there is no room to spread our further, ____ New York is an example.

A. for which                          B. in which         C. of which        D. from which

 Thank you for all your hard work last week. I don’t think we ______ it without you.

A. can manage                         B. could have managed      

C. could manage                       D. can have managed

 —They are quiet, aren’t they?

  —Yes. They are accustomed ______ at meals.

A. to talk          B. to not talk   C. to talking     D. to not talking

 The English spoken in the United States is only slightly different from ___ spoken in England.

A. which            B. what           C. that           D. the one

 一Will somebody go and get Dr．Smith？

  一He’s already been        ．

A. asked for        B. sent for       C. looked for     D. called for

 _______the workshops, the executives had a talk with the workers.

A. Inspected        B. Inspecting     C. Having inspected D. Having been inspected

 ____on his novel, the author decided to adapt it into a play.

A. Basing           B. Based          C. To base        D. Being based

 The evidence has ______ the first witness's story.

A. confused　　　　　                 B. accumulate          C. confirmed　   D. attached

 The newly discovered star was named　   a Chinese astronomer　　  honour of his contributions                to astronomy.

A. for; in　　　　　                  B. after; for　　　　　C. as; in　　　　    D. after; in