34、Unless      to speak, you should remain silent at the conference.

     A. invited            B. inviting            C. being invited         D. having invited

33、Only after I had known him for some time      to appreciate his real worth.

       A. do I begin                                         B. did I begin

       C. I began                                             D. had I begun

32、    surprised me most      to see some of the village people seated on the benches at the end of the room.

       A. What; was                                   B. What; were

       C. That; was                                    D. That; were

31、The teacher demanded that the exam      before eleven.

     A. would be finished                            B. must be finished

     C. be finished                                      D. must be finishing

30、 John dashed back into the room, and saw     .

     A. what wrong was                                   B. what was wrong

     C. if wrong was                                        D. if was wrong

29、--- How about going to hear the pop singer tonight？

--- _______, but I already have other plans.

A. I’d rather not         B. Thanks for asking  C. I’ll try my best      D. No, thanks

28、If the whole project _______ in advance, a great deal of time would have been lost.
A. had not been planned                       B. has not been planned

C. was not planned                              D. were not planned

27、We arrived at the stadium just in time _______ the beginning of the fashion show.

A. caught                     B. catching           C. to catch               D. for catching

26、It’s usually easy to find a room for renting in places _______ universities are located.

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