A、Picnic. B、Potluck. C、Informal meals. D、Formal meals. C对话结束部分男士说到周日晚上人们吃晚餐，很随意的。女士说那就是她喜欢的夜晚，她很不喜欢正式的晚宴，男士也不喜欢。所以他们都喜欢随意的晚餐，也就是

W: Did you have a good time last weekend?
M: Yes, I did. I visited some friends in Pennsylvania. They live in a small town called Canonsburg.
W: That must have been interesting. I’ve never been in a small town — just big cities.
M: Neither had I.
W: What did you do?
M: There isn’t as much to do as there is here. No plays or concerts. People make their own entertainment, though.
W: What do you mean?
M: Well, Saturday we went to a potluck supper.
W: A potluck supper. What’s that?
M: The whole neighborhood has a party. Everybody brings something. It’s all put on the table and you can eat whatever you like. That is a potluck supper.
W: It’s something like a picnic, isn’t it?
M: Well, yes. The weather was warm, so we had this one outdoors. But in winter they have them indoors, too.
W: What else did you do?
M: Sunday we went for a drive. We had lunch at a drive-in.
W: Is the countryside interesting?
M: Beautiful farmland. You’d like it.
W: I’m sure I would.
M: Sunday evening some people came to dinner. It was very informal — we just sat around and talked. Just a nice Sunday night supper.
W: That’s the kind of evening I like. I don’t care for a formal dinner so much.
M: Neither do I.
Questions 13 to 15 are based on the conversation you have just heard.
13. How did the man spend his last weekend?
14. Why did people make their own entertainment?
15. What kind of meal did the speakers say they like?