The water will be polluted unless some measures _____.

         A. will be taken         B. are being taken   C. are taken              D. were taken

 When and where to go for the on-salary holiday _____ yet.

   A. are not decided                                                    B. have not been decided

   C. is not being decided                                            D. has not been decided

 Liu Xiang is ________ Yao Ming.

   A. as a famous athlete as                             B. as famous an athlete as

   C. so a famous athlete as                             D. as famous an athlete so

 Sarah hopes to become a friend of _____ shares her interests.

  A. anyone                       B. whomever            C. whoever                         D. who

 This is the largest clock in the world, _____ the minute hand is six

meters long.

   A. where                       B. of which                          C. whose                    D. which

 The science of medicine, _____ progress has been very rapid lately, is perhaps the most important of all the science.

   A. all whose                 B. all what                           C. all that                            D. all which

Tom ____ desperate in front of the locked door.

   A. fell                             B. felt                          C. dropped                          D. lay

 _____ is known to everybody is ____ the moon travels round the earth

once a month.

   A. What; that                       B. That; that             C. It; what                           D. As; what

 _____ all that has been said, the tourists have been picking leaves.

   A. In spite                              B. Despite                  C. Even                                 D. Even so

 He was barking ____ let him in.

   A. for someone to                                                   B. in case of someone     

   C. so someone to                                                    D. so that someone