完成对话 根据上下文及右框的选项，将下面的对话补充完整。
A: Hi, Mike. How was your vacation?
B:         . I had a great time.
A: Where did you go?
B:         . I visited Beijing University.
A: Who did you go with?
B:         .
A: Nobody? I saw many beautiful photos in your QQ zone.
        ?
B: I took most of the photos by myself.
A:          ?
B: By using a selfie stick (自拍杆).
A: That sounds interesting.
B: That is. If we try something new, life will be more fun.

A.Nobody. B.How did you take photos? C.It was great. D.I went to Beijing. E.Who took photos for you?