Question

add question tag . l eat an apple.

Answer 1

Did I eat an apple?
hope it helps

Answer 2

Given sentence:

I eat an apple.

Sentence after adding appropriate question tag:

I eat an apple, don't I?

Additional information:

Question tag may be simply and compactly defined as a single phrase or group of words that is added at the end of a statement or sentence in order to and converts it to a question.

The British English call it "Question Tag" whereas on the other hand American English call it "Tag Question" or "Tail Question".

Question tags are generally common in familiar conversation and not in formal writing or conversation.