11. At this time tomorrow, we_         _ the mountain.

   A. would have been climbing     B. would climb

   C. will be climbing              D. climb

12. While the secretary _         _his desk, she found the long lost reports.

   A. had been cleaning   B. is cleaning    C. has been cleaning   D. was cleaning

13. My brother studies in Beijing University which_         _ in the city of Beijing.

   A. is situated    B. is being situated    C. situated    D. situates

14. When they _         _, the concert started.

    A. seated     B. were seating    C. were seated    D. were being seated

15. She didn’t remember_         _ a chance to try this method.

   A. to have given     B. to have been given

   C. having given     D. having been given

16. The police found that the house_         _ and a lot of things

   A. has broken into; has been stolen

   B. had broken into; had been stolen

   C. has been broken into; stolen

   D. had been broken into; stolen

17. Tim believed that his friend _         _by his boss a month or so ago.

   A. had been promoted     B. has promoted

   C. has been promoted     D. had promoted

18. He will stop showing off if no notice _         _of him.

A. is taken     B. will be taken     C. takes    D. has taken

19. When she _         _ all the magazines, she will come back home.

   A. has sold    B. will have sold     C. sells    D. will be sold

20. We had hardly sat down when she _         _ plates of food for us.

   A. brought   B. has brought     C. had brought    D. was bringing

 CDACD DAAAA