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Although ____ my opinion, the old professor didn’t come up with his own.

A. against    B. on    C. for    D. in

Although _______ my opinion,the old professor didn’t come up with his own.

A.against                      B.on                                   C.for                            D.in

Although ____ my opinion, the old professor didn’t come up with his own.

A. against    B. on    C. for    D. in

Although _______ my opinion, the old professor didn’t come up with his own.

A. against          B. on           C.  for         D. in

 Although _______ my opinion,the old professor didn’t come up with his own.

A.against               B.on                    C.for               D.in

 Although           my opinion, the old professor didn’t come up with his own.

A. against                         B. on                                   C. for                           D. in

Although _____ my opinion, the old professor didn’t come up with his own

A. against           B. on          C. for                 D. in

Although           my opinion, the old professor didn’t come up with his own. 

A. against                            B. on                                   C. for                           D. in