题目

根据对话内容，从方框内的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Brian: Hi, Cindy. Cindy; Hi, Brian. It is nice to sec you and somany old classmates.Brian: So it is. Cindy: You're right. It's really a long time.Brian: Did you see the old photos on the wall?Cindy: I sure did. Brian: But those are some great memories.Cindy: Hey! Brian. Yes, it is. I remember he used to stay upall night studying.Cindy: Brian: Yes. He was the only one left in the classwhen he woke up.Cindy: That was really funny.A. What happened?B. Long time no see!C. W用因式分解法解方程: