Question

my parents and sister had come out on to the veranda(add a question tag)

Answer 1

here come is verb and had is helping verb
when helping word is present, you should use that helping verb to firm question tag.

if no helping verb is present, ex : wrote, you should split it like did + write and again use the helping word.

here, by adding question tag the sentence will be:
my parents and sister had come out on to the veranda, hadn't they?

hope it helps.
if it did, pls mark brainliest

Answer 2

Answer:

my parents and sisters had come out on to the veranda