Answer:
He doesn't eat an apple.
Explanation:
QUESTION= He eats an apple.
Here,
The sentence is in simple present form so, the negative of it must also be in simple present form and he is a singular subject so we should use does for it,
Now,
Structure= subject+do/does/did+not+v¹+object.
Answer= He does not eat an apple.
Or,
He doesn't eat an apple.
