Question

my father ( watch)...................... TV while my mother and I ( cook).......... the dinner.

Answer 1

my father ( watch)........was watching.... TV while my mother and I ( cook)....were cooking.. the dinner.

Answer 2

my father ( watch).......watched............... TV while my mother and I ( cook).......were cooking... the dinner.

Answer 3

my father was watching TV while my mother and I were cooking the dinner.