Question

(1) My parents and sisters had come out on to the
veranda. (Add a question tag.)​

Answer 1

Explanation:

my parents and sisters had come out o to the varnada, hadn't they?

Answer 2

Explanation:

Q. What's a question tag?

A. It's basically a type of question which is asked by repeating the same sentence.

Coming to the question,

Q. My parents and sisters had come out on to the veranda. (add a question tag)

A. My parents and sisters had come out on to the veranda, hadn't they?

A. My parents and sisters had come out on to the veranda, hadn't they?

Here, as you can see, helping verb is used to ask the question.

Q. What are helping verbs?

A. These are a type of verb which helps to make a sentence, and can also help to decide the tense of a sentence. eg. had, have, has, is, are, am etc.

So, to convert any sentence into question, we use question tag which is an easy way of asking question.

Eg. He will go to play cricket.

Question tag:- He will go to play cricket, won't he?

So, the negative form of helping verb is used and yourtask is done :)