[解析]
W:Mr.Wilson,can I ask you something?
M:Sure.
W:What I'd like to do for my survey project is to interview three people.Would that be OK?Because in class,you said a survey is usually done with a large number of people.
M:That's right,it is.But tell me about your idea.
W:My idea is to interview three people in my host family.There's a grandmother who has a lot of opinions about life.I want to compare what she says with what the mother and the daughter say.Would that be all right?
M:It's a start.Why don't you prepare a list of questions—maybe five or six,but no more than ten—for your interviews?When you've done that,show me the list and we'll go from there.
W:All right.I'll work on it tonight.Thanks for the advice.