It is the only time in history that two Nobel Prizes        to the same person.

1. A.
   have been given
2. B.
   had been given
3. C.
   have given
4. D.
   will give

It is the only time in history that two Nobel Prizes______to the same person.

       A．have been given             B．had been given

       C．have given                   D．will give

It is the only time in history that two Nobel Prizes        to the same person.

       A．have been given             B．had been given

       C．have given              D．will give

It is the only time in history that two Nobel Prizes        to the same person.

A．have been given                                   B．had been given

C．have given                                          D．will give

It is the only time in history that two Nobel Prizes        to the same person.