How many times ____ them so far? A. have you seen B. did you see C. were yyou seeing D. had you seen

A. have you seen: How many times have you seen them so far?

D. had you seen: How many times had you seen them so far?

A. have you seen: How many times have you seen them so far?

C. were yyou seeing: How many times were you seeing them so far?

B. did you see: How many times did you see them so far?