A、He imagined them. B、He used magazine covers. C、He hired models. D、He read stories. C此类题目，耍注意会话话题的转换，以及每一个话题，说话者都说了什么，可以边听边做出选择

M: Did you see that (23)TV special on Norman Rockwell last night?
W: Yes, I did. It was really good, wasn’t it?
M: It sure was. I thought it was really interesting how he (25)developed the paintings in states starting with photographs.
W: Yes, I did, too. It never occurred to me that he would have actually employed models. I just assumed that he invented all those wonderful characters.
M: I know. (24)But it does make sense to use photographs of real people， to solve as many of the composition problems as possible before starting to paint.
w: True. Anyway, you know what I like most about his work?
M: What?
W: Well, when you look at one of the magazine covers, which magazine was it?
M: The Saturday Evening Post.
W: Yes, you can just tell what the people are thinking and feeling. The picture really tells a story.
M: You’re right. I like that, too. And to think that he created several hundred of those.
W: Amazing. Of course, that was over a period of almost sixty years, but still…
M: I’d like to see them when that exhibit comes to Miami.
W: What exhibit?
M: The one they mentioned after the special.
W: Oh. I must have turned it off before the announcement. I’d like to see it. too. Let’s go.