Question

Not only did I serve in the army, but _____ in the navy for a short while too.

I also served
I will also serve
also I was served
have also been served

Answer 1

A) I also served , is the right answer.☺️☺️☺️☺️
Full swntence:-
Not only I did serve in the army, but i also served the NAVY for a short while too.

Answer 2

Not only did I serve in the army, but I also served in the navy for a short while too.