What do you do to keep fit?
use the words and expressions:
to do moming exercises, to run, to play tennis/ football, to swim.
to eat fruit and vegetables
example: i swim every day to keep fit.​

I do morning exercises to keep fit/

I play tennis to keep fit/

I sometimes play football to keep fit/

I swim every monday to keep fit/

I always eat fruit and vegetables to keep fit/

У тебя спрашивают, что ты делаешь чтобы быть в форме. Предложения можешь отредачить на вкус.