Question

Where has he gone ? do you know it? change into a single sentence?

Answer 1

It would be :- Do you know where has he went/gone to?

Answer 2

Do you know where he has gone?

• We were supposed to combine the given sentences so that they form a single sentence.
• Since this is an interrogative sentence it will start with either the word "do" or "where".
• Here the word "do" must be used, after that we will combine both the sentences so that they are grammatically correct and end the sentence with a question mark.