For 800 years Oxford and Cambridge universities ______ in everything from Nobel prizes to boat races.

1. A.
   competed
2. B.
   had been competing
3. C.
   have competed
4. D.
   compete

For 800 years Oxford and Cambridge universities ______ in everything from Nobel prizes to boat races.

For 800 years Oxford and Cambridge universities ______ in everything from Nobel prizes to boat races.

A．competed                             B．had been competing

C．have competed                         D．compete

For 800 years Oxford and Cambridge universities ________ in everything from Nobel prizes to boat races.

   A. competed                                                                        B. had been competing            

C. have competed                                                                  D. compete