Carol said the work would be done by October, _______personally I doubt very much.

A.it                    B.that                  C.when             D.which

Carol said the work would be done by October, ___________ personally I doubt very much.

 Carol said the work would be done by October, _________ personally I doubt very much.

 A. it              B. that               C. when             D. which

Carol said the work would be done by October, _______ personally I doubt very much.

A. it　　　　 　　　　　　　　　 B. that

C. when　　　 　　　　　　　 D. which

 Carol said the work would be done by October, _________ personally I doubt very much.

 A. it              B. that               C. when             D. which

Carol said the work would be done by October, _________ personally I doubt very much.

A. that           B. when     C. it               D. which