题目：
用词、短语或句子补全对话。
Mei: Mom, my American friend, Mary, invited me to dinner this evening.
Mother: Really?1.________?
Mei: Seven. I'm afraid I have to go now.
Mother: 2. ________. It's only five thirty. You still have one and a half hours
left. Besides, her home 3. ________ from here.
Mei: Maybe I should get there early, or she will be worried.
Mother: You know, in the USA, people go to dinner neither too late nor too early.
You should 4,________ there at about seven.
Mei: I see. What do you think I should bring with me?
Mother: You don't need to take anything. If you like, you can 5________.
Mei: Do you think only flowers are enough?
Mother: Of course. That's pretty good.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：C解析：标识符的名字应该能反映出它所代表的实际东西，应有一定的意义。名字不是越长越好，应当选择精练的意义明确的名字。必要时可以使用缩写名字，但这时要注意缩写规则要一致，并且给每个名字加注释...
