2.5.1 Questions to ask to obtain more specific information
Earlier, we saw the conclusion: “Pete is a son or (a) daughter (of John).”.
However, such a conclusion is a bit vague because of its unspecified choice indicated by the conjunction “or”. To stimulate the obtaining of more specific information, we can present the conclusion as a question. To do that we must place a prior tense of the verb “to be ( am / is / are )” in the beginning of the sentence and end it with a question mark.
The result is: “Is Pete a son or (a) daughter (of John)?”.