Question

add a question-tag to Open the door

Answer 1

Hey
here's your answer!!

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Open the door, won't u??

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Hope it helps!!

Answer 2

Given sentence:

Open the door.

Sentence after adding appropriate question tag:

Open the door, won't you?

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.