John is a lazy student,one of_________ bad study habits is to leave for tomorrow_____ ought to be done today.

1. A.
   his;something
2. B.
   whose;what
3. C.
   whom;that
4. D.
   his;that

John is a lazy student,one of_________ bad study habits is to leave for tomorrow_____ ought to be done today.

A.his;something                            B.whose;what

C.whom;that                               D.his;that

John is a lazy student, one of ______ bad study habits is to leave for tomorrow ______ ought to be done today.

A. his; something          B. whose; what     C. whom; that  D. his; that?

John is a lazy student, one of_________ bad study habits is to leave for tomorrow_____ ought to be done today.
A. his; something                                B. whose; what 

John is a lazy student, one of ______ bad study habits is to leave for tomorrow ______ ought to be done today.

A. his; something          B. whose; what     C. whom; that                      D. his; that