The novels written by the author sell best, but five years ago no one could have imagined how great a role he ______in the literary world.

1. A.
   was playing
2. B.
   was to play
3. C.
   had played
4. D.
   played

The novels written by the author sell best, but five years ago no one could have imagined how great a role he _____in the literary (文学的) world.

   A. was playing          B. was to play         C. had played          D. played

The novels written by the author sell best, but five years ago no one could have imagined how great a role he _____in the literary world.

 A. was playing            B. was to play          C. had played       D. played

The novels written by the author sell best, but five years ago no one could have imagined how great a role he      in the literary world.

A．was playing                      B．played                      C．was to play             D．had played

The novels written by the author sell best, but five years ago no one could have imagined how great a role he      in the literary world.

A．was playing     B．played      C．was to play      D．had played