21. A wonderful performance ________ in the school gymnasium next month.

   A. is put on                                 B. has been put on    

C. will be put on                            D. was put on

22. Recently I bought a beautiful car, ______was reasonable.

A. of which price                           B. the price of whose

C. the price of which                            D. which price

23. Tom’s father as well as his mother ________ that he ______ at home.

   A. suggest; stay                             B. suggests; stays

   C. suggest; stays                            D. suggests; stay

24. He was presented with a TV set in________ for his services.

   A. award                                 B. reward    

C. prize                                     D. result