Ummm how about since March break is here I would like to talk to u about it maybe
His brother put him into it
They should be respectful by not tuching the art.
They should be mindful of others by not being too loud.
And they should be polite... If you have nothing nice to say dont say anything at all.
Since many people is plural, so there isn't only one person, but many of them, the verb also has to be plural. So, the correct answer is A) have.