Alice: Hi, Sam! It's nice to see you here.
Sam. Hi. Alice!
Alice: _____（56）
Sam: To my dorm.
Alice: Great! Could you take this book to Peter?
Sam: _____（57）Does Peter know what it is for?
Alice: Yes. _____（58）
Sam: _____（59）Are you well prepared for it?
Alice: _____（60）See you tomorrow!
Sam: See you!
56._____.
A、How about your presentation?
B、He needs it for tomorrow's presentation.
C、I think so.
D、Where are you heading?
E、You are welcome.
F、No problem!
【正确答案】：D
【题目解析】：56题后面一句话为答句，且表示“去宿舍”因此选项应选择询问去哪里的问句。D选项符合题意。