I can’t remember how many years ago _____ a fight broke out between the husband and the wife.

1. A.
   it was when
2. B.
   was it that
3. C.
   it was that
4. D.
   was it when

       I can’t remember how many years ago ____________ a fight broke out between the husband and the wife.

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